Pure Gases. Pure Gases

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2 Introduction...P1 Acetylene...P2 Air...P3 Ammonia...P5 Argon...P6 Boron Trichloride...P8 Boron Trifluoride...P8 1,3-Butadiene...P9 n-butane...p10 1-Butene...P11 2-Butenes...P11 2-Butene (cis)...p12 2-Butene (trans)...p12 Carbon Dioxide...P13 Carbon Monoxide...P14 Chlorine...P15 Dimethylamine...P16 Ethane...P17 Ethyl Chloride...P18 Ethylene...P18 Halocarbon-14...P20 Halocarbon-23...P21 Halocarbon P22 Halocarbon P23 Halocarbon-C318...P24 Halocarbon P24 Helium...P25 Hydrogen...P27 Hydrogen Chloride...P29 Hydrogen Sulfide...P30 Isobutane...P31 Isobutylene...P32 Krypton...P33 Methane...P34 Methyl Chloride...P Methylamine...P Neon...P36 Nitric Oxide...P36 Nitrogen...P37 Nitrogen Trifluoride...P38 Nitrous Oxide...P39 Oxygen...P40 Propane...P41 Propylene...P42 Sulfur Dioxide...P43 Sulfur Hexafluoride...P44 Trimethylamine...P45 Xenon...P46

3 General Information Meeting the ISO 9001:8 for Quality Management Systems Airgas is committed to providing top-quality products and services to meet the needs of our customers. Our procedures, processes and products are designed to meet or exceed your expectations. From raw material sourcing, cylinder preparation and filling, to delivery and customer service, we make sure you get the quality you expect. General Information The Airgas specialty gas network includes 11 national labs, 67 regional labs, two equipment centers, and one R&D center that support products including high-purity, rare, calibration, and specialty-blend gases nearly three-quarters of specialty gas labs are ISO 9001 registered; eight are also ISO/IEC accredited. Meeting the highest standards for quality management is important to Airgas because it is important to our customers. The International Organization for ization (ISO) is a worldwide federation of national standards bodies from more than 140 countries, one from each country. The ISO 9001:8 standard specifies requirements for a quality management system for any organization that needs to demonstrate its ability to consistently provide products that meet customer and applicable regulatory requirements and aims to enhance customer satisfaction. Independent third-party registrars, like Quality Systems Registrars, Inc., conduct audits and grant certifications based on the ISO 9000 standards. QSR is accredited by RAB (United States) and RvA (Dutch). Airgas maintains the latest analytical equipment and techniques to assure precise analytical data. The majority of Airgas specialty gas facilities are certified to the ISO 9001:8 standard for quality management systems, and seven laboratories are also accredited to the stringent ISO standards. With more than 60 specialty gas facilities, Airgas maintains the industry s largest specialty gas production and analysis capabilities. Each Airgas facility maintains strict calibration standards. A systematic Round Robin testing procedure assures that each facility produces consistent products. So whether your specialty gas needs are across town or across the country, you can be sure of getting the quality and consistency you need. Airgas developed and patented AcuGrav, the company s proprietary computerized high-tolerance specialty gas filling system, enabling quality, precision, and consistent filling of multi-component blends. AcuGrav enables Airgas to reduce the variability in manual filling, providing greater accuracy, consistency and reliability for high-tolerance gas mixtures.

4 General Information Specialty Gas Comparison Chart Specialty Gas Comparison Chart Approximate Dimensions (inches) High Steel Airgas Linde Air Liquide/Scott Specialty Gases 9 x T 1L 300 K 9 x K 1A A 7 x Q 2 B 7 x G 3 C 2 x 12 LB LBR LB LB LB LB LB 4 x 26 E 005 MEDE ANE 3L E ER 10 x 51 3HP H 6K 1U 6K 9 x 51 2HP 44H 3K 1H 3K Aluminum Air Liquide Praxair Matheson Trigas 10 x A AT 8 x A A31 30AL AS 1R 150AL AL 7 x 33 A A16 22AL AQ 2R AL BL 7 x 16 33A A07 7AL AG 3R 33AL CL 4.5 x 15 9A 9AL 9AL MG General Information Additional Supply Modes Bulk Specialty Gases and Chemicals Many Airgas specialty gases and chemicals can be supplied in bulk quantity. s available in bulk quantity are identified throughout the catalog by the symbols shown below: Cryogenic Liquid s Cryogenic liquids such as nitrogen and helium are supplied in dewars (low-pressure cryogenic tanks) for larger requirements near customers point of use. MicroBulk Tank trucks are used for over-the-road transportation of cryogenic liquids. Liquid product is then transfilled to cryogenic storage tanks at customer locations. Tube trailers (T.T.) provide over-the-road shipment of high-pressure gases, gaseous chemicals, and gas mixtures. The trailers serve as on-site storage systems at customer locations. As your need for higher gas volumes increases, time lost to changing out cylinders and gas lost to venting liquid dewars can take a bigger bite out of your bottom line. Airgas MicroBulk delivery is the perfect way to get the cost efficiencies of bulk deliveries, but in smaller volumes. Airgas integrated MicroBulk delivery system eliminates the hassles and extra expense of cylinders and liquid dewars and provides a safer work environment. If you are considering large-volume supply, a representative from Airgas can discuss your requirements and the economics of alternate supply systems.

5 General Information Identification Packaging and Color Airgas uses a teal paint to identify specialty gas cylinders. Here are the highlights of our cylinder packaging: A cylinder neck ring is permanently fixed below the base of the valve. Airgas does not use color coding to identify cylinder contents. color should never be used to identify contents. Please read the contents label. A shoulder label indicates the product s shipping name and identification number. On pure products, a grade label is also applied to the cylinder shoulder. The shoulder label identifies cylinder contents. Markings Airgas specialty gas cylinders are stamped with markings designed to indicate ownership, specifications, pressure ratings, and other important data. Airgas also utilizes a bar code label for product identification and tracking. 1. Specification: DOT Department of Transportation (previously ICC Interstate Commerce Commission), which is the regulatory body that governs the use of cylinders. Specification of the cylinder type of material of construction (e.g., 3AA). Service or working pressure in pounds per square inch (e.g., 2,265 psig). 2. Serial 3. Date of Manufacture: This date (month-year) also indicates the original hydrostatic test. 4. Neck Ring Identification: The cylinder neck ring displays the name of the original owner of the cylinder. 5. Retest Markings: The format for a retest marking is: Month Facility Year Plus Rating Star Stamp. The + symbol (Plus Rating) indicates that the cylinder qualifies for 10% overfill. The H symbol (Star Stamp) indicates that the cylinder meets the requirements for 10-year retest, instead of a 5-year retest. 6. Bar Code Label: The bar code label provides a unique cylinder identifier and is used by computer systems to track cylinders throughout the fill process. As an optional service, we have the capability of tracking cylinders to and from customers. 7. Manufacturer s Inspection Marking 8. Tare (Empty) Weight: This value may be preceded by the letters TW. FLAMMABLE GAS 2 NON-FLAMMABLE GAS 2 POISON GAS FLAMMABLE LIQUID 3 CORROSIVE 8 POISON General Information 2 6 D.O.T. Classifications Your compressed gas cylinders will have one or more of the hazardous materials placards shown at right. The United States Department of Transportation (US DOT) in Title 49 Section 173 of the United States Code of Federal Regulations (49 CFR 173) requires the use of hazardous materials placards when shipping compressed gases. These hazardous materials placards are indended to indicate the general hazards associated with the contents of the gas in the cylinder. For complete hazardous material information, refer to the Material Data Safety Sheet (MSDS). OXIDIZER 5.1

6 Acetylene (C 2 H 2 ) A colorless, flammable gas, with a garlic-like odor, that is dissolved in acetone. warning: Do not discharge this gas at pressures exceeding 15 psig. Specifications Minimum Purity Air Phosphine Total Sulfurs Atomic Absorption (AA) 99.6% 0.4% Atomic Absorption (AA) ft AC AA AC AA4 250 Y11-120A E55 Acetylene Filter Y E154 Molecular Weight F & 1 ATM % in Air Acetylene, Dissolved ID UN 1001 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry Airgas offers unique acetylene automatic changeover systems, regulators and filters that allow Atomic Absorption detector users to get continuous acetylene supply while protecting the analyzer from acetone.

7 Air (C2H2) A colorless, odorless, nonflammable gas. A synthetic blend of oxygen and nitrogen. Not for breathing applications. Grade %O 2 H 2 O THC CO 2 CO NO x SO 2 Semiconductor (#) (1) 1 (1) Continuous Emissions Monitoring (CEM) (2) Vehicle Emissions Zero Vehicle Emissions Part Ultra Zero (1) 1 (1) Zero Dry Notes (1) Combined CO and CO 2 impurities not to exceed 1 ppm. (2) Meets all California B.A.R. 97 specifications. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. ft 3 Valve Outlet Range (psig) Semiconductor AI SM300 AI SM Continuous Emissions Monitoring (CEM) A A 33A AI CZ300 AI CZ AI CZ15A AI CZA AI CZ33A Vehicle Emissions Zero Batch Complies with 40 CFR Part Meets all California BAR 97 Specifications A A 33A AI VE300 AI VE AI VE15A AI VEA AI VE33A For use in BAR 97 applications. Complies with 40 CFR Part Y11-N145 * Y * Y12-N145 * Y * Y12-N245 * D = E = E20 E11 E21 E12 Vehicle Emissions Part A A 33A AI VE300 AI VE AI VE15A AI VEA AI VE33A Batch Complies with 40 CFR Part * Insert Range Code

8 Air Cont. A colorless, odorless, nonflammable gas. A synthetic blend of oxygen and nitrogen. Not for breathing applications. ft 3 Valve Outlet Range (psig) Ultra Zero AI UZ300 AI UZ AI UZ AI UZ Zero 300 Dry AI Z300 AI Z AI Z AI Z An individual or batch analysis is available upon request at a nominal charge AI D300 AI D AI D AI D Y12-N245 * Y * Y11-N245 * Y * D = E = E21 E12 E20 E11 An individual or batch analysis is available upon request at a nominal charge. * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Air, Compressed ID UN 1002 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry N/A Ask about an Airgas gas generator for use with your FID appli cations. We offer a wide range of gas generators all with carefully matched components engineered for easy installa tion, operation, and long-term reliability. With Airgas, you ll find the right gases and equipment for even the most sensitive applications. Pictured is the Airgas TOC-1250 Zero Air Generator.

9 Ammonia (NH 3 ) A colorless, toxic, alkaline, flammable, liquefied gas with a pungent odor, irritating to eyes, skin and mucous membranes in high concentrations. Grade % Purity O 2 H 2 O THC CO 2 CO H 2 Semiconductor (#) (1) Electronic Premium Anhydrous Notes (#) Semiconductor grade valve material is SS, DISS 720 only. (1) Metals analysis available for Sb, Cd, Ca, Cr, Co, Cu, Ga, Pb, Li, Mg, Mn, Mo, Ni, K, Si, Na, Te, Sn, Zn Valve Outlet (CGA, DISS) Semiconductor AM SM300DS 114 Certificate of Analysis provided upon request. Y11-E464C660 Electronic AM EL A 660 AM EL15A 114 Cross Purge AM EL 114 Y99-CPA4660 Premium 150A Anhydrous 400 (2) Certificate of Conformance provided upon request Certificate of Conformance provided upon request / / /705 Certificate of Conformance provided upon request. (2) Available only in Anhydrous grade AM PR AM PR15A AM PR AM AH400 AM AH AM AH Tee Purge Y99-TP4C660 Y11-C520C705 Cross Purge Y99-CPA4705 Tee Purge Y99-TP4C705 Range (psig) E29 E50 E51 E45 E50 E51 Molecular Weight F & 1 ATM 15-28% in Air Ammonia, Anhydrous ID UN 1005 U.S. DOT Hazard Class 2.2 Inhalation Hazard CAS Registry Ask your Airgas representative about our unmatched bulk ammonia supply capabilities.

10 Argon (Ar) Continued A colorless, odorless, nonflammable gas or a colorless, odorless, nonflammable cryogenic liquid. Grade % Purity O 2 H 2 O THC CO CO 2 N 2 Research Plus Research (1) Ultra Pure Carrier (UPC) (2) 1 (2) 5 Semiconductor (#) (2) 1 (2) 5 Ultra High Purity (UHP) (2) 1 (2) 5 LaserPLUS Zero Grade High Purity/High Notes (1) The total impurities shall not exceed 3ppm. (2) Total impurity CO + CO 2 (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. ft 3 Valve Outlet Range (psig) Research Plus A AR RP300 AR RP AR RP15A Research A Ultra Pure Carrier (UPC) AR R300 AR R AR R15A AR R AR R AR UPC300 AR UPC AR UPC AR UPC Y12-N145 * Y11-N145 * Y * D=0-100 E = F = G = 0-500** E21 E20 Semiconductor AR SM300 AR SM * Insert Range Code

11 Argon (Ar) Cont. Ultra High Purity (UHP) 300 Zero 300 High / High Purity Liquid ft Valve Outlet A colorless, odorless, nonflammable gas or a colorless, odorless, nonflammable cryogenic liquid. AR UHP300 AR UHP AR UHP AR UHP AR Z300 AR Z AR Z AR Z 300 6K 3K AR HP300 AR HP AR HP AR HP AR HP6K AR HP3K 6,000 3,500 Various grades, sizes, and volumes available upon request. Individual or Batch Certificate of Analysis available upon request. Y * Y12-N245 * Y * Y11-N245 * Range (psig) D=0-100 E = F = G=0-500** * Insert Range Code ** Single Stage Only E12 E21 E11 E20 Molecular Weight F & 1 ATM Nonflammable Argon, Compressed ID UN 1006 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry For LaserPLUS Applications, see SA17. Airgas offers a wide range of gas supply modes, including high-pressure cylinders, liquid cylinders (or dewars), MicroBulk and bulk. Your Airgas specialty gas representative can help you decide which option is best for your operation. Be sure to ask about our unique line of specialty gas equip ment, including automatic changeover systems for uninterrupted gas supply.

12 Boron Trichloride (BCI 3 ) Specifications Minimum Purity Chemically Pure (CP) 99.9% A colorless, corrosive, highly toxic, nonflammable, liquefied gas with a pungent, irritating odor. Chemically Pure (CP) BC CP BC CP BC CP 4.4 Certificate of Conformance provided upon request. Y11-C440N Cross Purge Y99-CPA4330 Manual Flow Control Valve Y Y E E50 E112 E112 Molecular Weight F & 1 ATM Nonflammable Boron Trichloride ID UN 1741 U.S. DOT Hazard Class 2.3 Inhalation Hazard, Poison Gas CAS Registry

13 Boron Trifluoride (BF 3 ) Specifications Minimum Purity Chemically Pure (CP) 99.9% A colorless, highly toxic and corrosive, nonflammable gas with a strong, suffocating odor. Fumes strongly in moist air. Chemically Pure (CP) BF CP BF CP 0 Certificate of Conformance available upon request. Y12-E444A Y12-E444B Y12-E444D Y11-E444A Y11-E444B Y11-E444C Y11-E444D Y11-E464A Y11-E464B Y11-E464C Y11-E464E Cross Purge Y99-CPA4330 E29 E29 E29 E29 E29 E29 E29 E29 E29 E29 E29 E50 Molecular Weight F & 1 ATM Nonflammable Boron Trifluoride, Compressed ID UN 1008 U.S. DOT Hazard Class 2.3 Inhalation Hazard, Poison Gas CAS Registry

14 1,3-Butadiene (C 4 H 6 ) A colorless, flammable, liquefied gas with a mildly aromatic odor. Specifications Minimum Purity Butadiene Dimer Other C 4 s H 2 O Sulfur Instrument 99.5% Chemically Pure (CP) 99.0% Instrument B3 I 21.4 LP B3 ILP Chemically Pure (CP) Certificate of Conformance provided upon request B3 CP 21.4 LP B3 CPLP Y11-LC241A510 E16 Certificate of Conformance available upon request. Molecular Weight F & 1 ATM % in Air Butadienes, Stabilized ID UN 1010 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

15 n-butane (C 4 H 10 ) A flammable, colorless, liquefied gas with gasoline-like odor. Specifications Purity N 2 O 2 Other HC s H 2 O Sulfurs Research 99.99% * 3 1 Instrument 99.5% ,500* 5 1 Chemically Pure (CP) 99.0% Analysis based on liquid phase. *Other HC s are defined as Iso-Butane, N-Pentane, Iso-Pentane, Butene, Ethane, and Propane. Research NB R 16 LP NB RLP5 16 LP NB RLP1 16 Individual Certificate of Analysis available upon request. Instrument 1/ 2 TON NB IHTN NB I 16 0 LP NB ILP E16 Y11-LC241A510 Chemically Pure (CP) 1/ 2 TON NB CPHTN NB CP 16 LP NB CPLP5 16 Molecular Weight F & 1 ATM % in Air Butane ID UN 1011 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

16 1-Butene (1-C 4 H 8 ) A flammable non-corrosive and non-toxic, liquified gas. Specifications Minimum Purity Other Hydrocarbons N 2 O 2 H 2 O Instrument 99.5% Chemically Pure (CP) 99.0% Instrument B1 I 23.5 LP B1 ILP Chemically Pure (CP) Certificate of Conformance available upon request B1 CP 23.5 LP B1 CPLP E16 Y11-LC241A510 Certificate of Conformance available upon request. Molecular Weight F & 1 ATM % Butylene ID UN 1012 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry Butenes (2-C 4 H 8 ) A flammable, colorless, liquified gas. Specifications Minimum Purity Chemically Pure (CP) 99.5% Chemically Pure (CP) 1/ 2 TON B CPHTN 15 Certificate of Conformance available upon request E16 Y11-LC241A510 Molecular Weight F & 1 ATM % in Air Butylene ID UN 1012 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

17 cis-2-butene (cis-2-c 4 H 8 ) A colorless, flammable, liquefied gas with a slightly aromatic odor. Specifications Minimum Purity Chemically Pure (CP) 99.0% Chemically Pure (CP) LP T2 CPLP Y11-LC241A510 E16 Certificate of Conformance available upon request. trans-2-butene (trans-2-c 4 H 8 ) A flammable, colorless, noncorrosive and nontoxic liquefied gas. Specifications Minimum Purity Chemically Pure (CP) 99.0% Chemically Pure (CP) LP TT CPLP Y11-LC241A510 E16 Certificate of Conformance available upon request. Molecular Weight F & 1 ATM cis-2-butene 1.7-9% in Air trans-2-butene % in Air Butylene ID UN 1012 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry cis-2-butene trans-2-butene

18 Carbon Dioxide (CO 2 ) A colorless, odorless nonflammable, liquefied gas. Grade % Purity H 2 O THC Ar CO N 2 O 2 SFE (1) (3) (4) SFC (2) (3) 3 1 (4) Research Plus (3) Research (3) Semiconductor (#) (4) LaserPlus - Ultra (5) LaserPlus (5) 5 5 Laser (5) Pure Clean (4) Instrument/Coleman Refrigerant (R744) Anaerobic Bone Dry Notes (1) SFE grade also carries a Halocarbon spec of 1 ppb. THC spec is <0.5ppm for C1-C6 hydrocarbons and <10ppb for C7-C26 hydrocarbons. (2) SFC grade also carries a Halocarbon spec of 10 ppb. (3) Total indicated components must be less than stated impurity. (4) C1 through C6 (5) Details of Laser grades can be found in the Special Applications section. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Valve Outlet Range (psig) SFE 150A CD SFE15AS 8 Equipped with siphon tube. Up to 0 psig Helium head option available. Connection Kit Y99-TP18C320K SFC 150A CD SFC15AS 8 Connection Kit Y99-TP18C320K Research 150A CD R CD R15A 8 8 N/A N/A E148 E148 Semiconductor 150A CD SM CD SM15A Pure Clean CD PCS 8 Instrument/Coleman Refrigerant CD IS CD IS For cooling applications order this product with a siphon tube for liquid withdrawal. Add S to the end of the product number REFR744R REFR744R 8 8 Y12-N245 * 320 Y * 320 Y11-N245 * 320 Y * 320 D=0-100 E = F = G = 0-500** * Insert Range Code ** Single Stage Only E21 E12 E20 E11 Anaerobic Bone Dry CD AN CD AN CD BD CD BD Y * 320 Y * 320 D=0-100 E = F = G = 0-500** * Insert Range Code ** Single Stage Only E9 E8

19 Carbon Dioxide (CO 2 ) Cont. Molecular Weight F & 1 ATM Nonflammable Carbon Dioxide ID UN 1013 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry A colorless, odorless nonflammable, liquefied gas. For LaserPLUS Applications, see SA17. Need Dry Ice? You ll find it with us. Ask your local Airgas representative. Ask about our unique SFE/SFC connection designed specifically for supercritical applications.

20 Carbon Monoxide (CO) A flammable, odorless, colorless, and toxic gas. Grade % Purity O 2 H 2 O CO 2 THC H 2 N 2 Fe (CO) 5 Ni (CO) 4 Sulfurs Research Plus Semiconductor (#) ppmw 0.1 ppmw 0.5 Research UHP** 99.9 Chemically Pure (CP) 99.3 Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. **Total Impurities 1000 ppm ft 3 Valve Outlet Range (psig) Research Plus 300A 150A A CM RP3HA CM RP15A CM RPA Semiconductor 300A 150A CM SM3HA CM SM15A Research A Ultra High Purity (UHP) A CM R300 CM R CM R15A CM R CM UHP300 CM UHP CM UHP15A CM UHP 1,675 1,675 1,675 1,675 Y12-N245 * Y * Y11-N245 * Y * D=0-100 E = F = G = 0-500** E21 E12 E20 E11 Chemically Pure (CP) A CM CP300 CM CP CM CP15A CM CP 1,675 1,675 Industrial CM 300 CM 1,675 * Insert Range Code ** Single Stage Only Molecular Weight F & 1 ATM % in Air Carbon Monoxide ID UN 1016 U.S. DOT Hazard Class 2.3 Inhalation Hazard & Flammable Gas CAS Registry

21 Chlorine (CI 2 ) A greenish-yellow, liquefied gas with a choking odor. May react violently with ammonia, hydrocarbons and hydrogen. Grade % Purity O 2 CO CO 2 N 2 THC Electronic Ultra High Purity High Purity 99.5 (1) Notes (1) Total impurities <5000ppm Semiconductor CL SM CL SM 85 Ultra High Purity (UHP) Certificate of Conformance available upon request CL UHP 85 Positive Seal Y11-E444 * 660 Y11-E464 * 660 Cross Purge Assembly Y99-CPA4660 D=0-100 E29 E29 E50 Certificate of Conformance available upon request. Tee Purge Y99-TP4C660 E51 High Purity (HP) CL HP 85 Certificate of Conformance available upon request. * Insert Range Code Molecular Weight F & 1 ATM Oxidizer Chlorine ID UN 1017 U.S. DOT Hazard Class 2.3, 8 Inhalation Hazard & Corrosive CAS Registry For more details, see Process Chemicals in Special Applications section.

22 Dimethylamine (CH 3 ) 2 NH Specifications Minimum Purity Chemically Pure (CP) 99.5% A colorless, flammable liquefied gas with a characteristic fishy or ammonia-like odor. Chemically Pure (CP) 1/ 2 TON DM CPHTN 26 Manual Flow N/A DM CP 26 Control 0 Valve Y E112 Certificate of Conformance available upon request. Molecular Weight F & 1 ATM % in Air Dimethylamine, Anhydrous ID UN 1032 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

23 Ethane (C 2 H 6 ) A flammable, colorless liquefied gas. Specifications Minimum Purity O 2 H 2 O Other Hydrocarbons CO/CO 2 N 2 Research Plus % Research 99.99% Technical 98.5% Research Plus 32 ET RP ET RP 543 Y * 0 E11 D = F = Research 32 ET R ET R 543 Y * E9 Technical ET T ET T ET T 543 Y * E8 * Insert Range Code Molecular Weight F & 1 ATM % in Air Ethane ID UN 10 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

24 Ethyl Chloride (C 2 H 5 CI) A colorless, flammable, liquefied gas with a pungent, ethereal odor. Specifications Minimum Purity Chemically Pure (CP) 99.9% Chemically Pure (CP) TON EC CPTON 5.6 Manual 1/ 2 TON EC CPHTN 5.6 Control 0 Valve 1/ 4 TON EC CP Y EC CP 5.6 N/A E112 Molecular Weight F & 1 ATM % in Air Ethyl Chloride ID UN 1037 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry Ethylene (C 2 H 4 ) ( A flammable, colorless liquefied gas. Other Specifications Minimum Purity O 2 H 2 O Hydrocarbons CO CO 2 N 2 Research Plus % Research % Ultra High Purity (UHP) 99.9% Chemically Pure (CP) 99.5% 1000 Plant Growth 98.5% 1000 Research Plus Research EY RP300 1 ) 30 EY RP 1 11 EY RP EY RP 1 A= 25 Y * B= 50 D=100 D= E=150 F = F= EY R300 1 Y * 30 EY R 1 11 EY R EY R 1 E12 E11 * Insert Range Code

25 Ethylene (C 2 H 4 ) Cont. Ultra High Purity (UHP) A flammable, colorless liquefied gas EY UHP EY UHP 1 11 EY UHP EY UHP 1 0 Chemically Pure (CP) EY CP EY CP 1 11 EY CP 1 4 EY CP 1 Y * Y * D= F = E9 E8 Plant Growth (PGR) EY PGR EY PGR 1 11 EY PGR 1 4 EY PGR 1 0 * Insert Range Code Molecular Weight F & 1 ATM % in Air Ethylene, Compressed ID UN 1962 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry Additional Information: PGR Grade is FIFRA registered and labeled as a Plant Growth. Recommended for produce ripening and degreening. Please inquire about customer-owned fill guidelines.

26 Halocarbon-14 (CF 4 ) (Tetrafluoromethane, Carbon Tetrafluoride) A colorless, nonflammable, noncorrosive gas. Grade % Purity O 2 SF 6 N 2 CO CO 2 H 2 O Acidity (HF) Other Halocarbons Semiconductor (#) ppmw 2 1 UHP ppmw 10 Chemically Pure (CP) (1) 99.9 THC Notes (1) Total impurities not to exceed 1000 ppm. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Semiconductor Y 720 RD SMY RD SM RD SM 1875 Vapor phase analysis. Ultra High Purity (UHP) 70 RD UHP 1875 Individual or Batch Certificate of Analysis available upon request. Vapor phase analysis. Y12-C445 * Y11-C444 * D=0-100 E = F = G = 0-500** E28 E27 Chemically Pure (CP) 70 RD CP 1875 Individual or Batch Certificate of Analysis available upon request. Vapor phase analysis. * Insert Range Code ** Single Stage Only Molecular Weight F & 1 ATM Nonflammable Tetrafluoromethane, Compressed ID UN 1982 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

27 Halocarbon-23 (CHF 3 ) (Trifluoromethane, Fluoroform) A colorless, nontoxic, nonflammable gas with a slightly ethereal odor. Grade % Purity O 2 H 2 O CO 2 N 2 THC Other Halocarbons Semiconductor (#) Ultra High Purity (UHP) Chemically Pure (CP) (1) 99.9 Acidity (HF) Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. (1) Total impurities not to exceed 1000 ppm. Valve Outlet Range (psig) Semiconductor RF SM 6 Ultra High Purity (UHP) RF UHP 6 Y11-C444 * 660 D=0-100 E27 Chemically Pure (CP) RF CP 6 * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Trifluoromethane, Compressed ID UN 1984 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

28 Halocarbon-116 (C 2 F 6 ) A colorless, noncorrosive, nonflammable liquefied gas. (Hexafluoroethane) Grade % Purity O 2 H 2 O Other Halocarbons Acidity (HF) CO CO 2 N 2 THC Semiconductor (#) ppmw Chemically Pure (CP) (1) 99.9 Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. (1) Total impurities not to exceed 1000 ppm. Valve Outlet Range (psig) Semiconductor Y RI SMY RI SM Chemically Pure (CP) RI CP 417 Y11-C444 * 660 D=0-100 E = E27 * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Hexafluoromethane, Compressed ID UN 2193 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry P

29 Halocarbon-218 (C 3 F 8 ) A colorless, nonflammable liquefied gas with a faintly sweet odor. (Perfluorpropane, Octafluoropropane) Specifications Minimum Purity Air H2O Other Halocarbons Acidity (HF) Semiconductor % ppmw Semiconductor ½ TON 1, R SMHTN R SM 100 Y11-C444 * D=0-100 E27 * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Octafluoropane, Compressed ID UN 2424 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

30 Halocarbon-C318 (C 4 F 8 ) (Octafluorocyclobutane) A colorless, odorless, nonflammable liquefied gas. Grade % Purity O 2 N 2 H 2 O Other Halocarbons Acidity (HF) Semiconductor (#) ppmw Chemically Pure (CP) ppmw Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Semiconductor ½ TON 1, R3 SMHTN R3 SM 25 Chemically Pure (CP) ½ TON 1, R3 CPHTN R3 CP 25 Y11-C444 A E27 Molecular Weight F & 1 ATM Nonflammable Octofluorocyclobutane ID UN 1976 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

31 Halocarbon-1216 (C 3 F 6 ) (Hexafluoropropylene) An odorless, colorless, noncombustible gas. Specifications Minimum Purity O2 H2O Polymer 99.9% Polymer Certificate of Analysis available upon request. ½ TON 1, HN PHTN 85 Y11-C444 A E27 Molecular Weight F & 1 ATM Nonflammable Hexafluoropropylene ID UN 1858 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

32 Helium (He) A colorless, odorless, nonflammable, inert gas. Grade % Purity O 2 H 2 O THC CO CO 2 Ar N 2 Research (1) Chromatographic Ultra Pure Carrier (UPC) (2) 1 (2) 3 Semiconductor (#) (2) 1 (2) 5 Ultra High Purity (UHP) (2) 1 (2) 5 LaserPlus Ultra (3) LaserPlus (3) 5 1 Laser (3) Zero High Purity/High Notes Purity levels given are excluding Neon. (1) Total of impurities listed shall not exceed 1 ppm. (2) Total CO + CO 2 shall not exceed 1 ppm (3) Details of Laser grades can be found in the Special Applications section. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Research 300 ft Valve Outlet HE R300 HE R HE R HE R Y * Y12-N245 * Y12-T265 * Y11-N145 * Y * Y11-T265 * Y11-N245 * Range (psig) D=0-100 E = * Insert Range Code E12 E21 E23 E20 E11 E22 E20 Chromatographic HE CH300 HE CH HE CH HE CH Ultra Pure Carrier (UPC) 300 Semiconductor 300 Ultra High Purity (UHP) HE UPC300 HE UPC HE UPC HE UPC HE SM300 HE SM HE UHP300 HE UHP HE UHP HE UHP Y12-N145 * Y * Y12-N245 * Y11-N145 * Y * Y11-N245 * D=0-100 E = F = E21 E12 E21 E20 E11 E20 * Insert Range Code

33 Helium (He) Cont. Zero High Purity / High ft 3 A colorless, odorless, nonflammable, inert gas HE Z HE Z 84 HE Z 33 HE Z HE HP HE HP 84 HE HP 33 HE HP 6K HE HP6K 6,000 3K HE HP3K 3,500 Y12-N245 * Y * Y11-N245 * D=0-100 E = F = E21 E12 E20 E11 * Insert Range Code Liquid Various sizes, volumes, and grades available upon request. Individual or Batch Certificate of Analysis available upon request. Molecular Weight F & 1 ATM Nonflammable Helium, Compressed or Refrigerated Liquid ID UN 1046 or UN1963 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry For LaserPLUS Applications, see SA14. Airgas offers a wide range of gas supply modes, including high-pressure cylinders, liquid cylinders (or dewars), MicroBulk and bulk. Your Airgas spe cialty gas representative can help you decide which option is best for your operation. Be sure to ask about our unique line of specialty gas equipment, including automatic changeover systems for uninterrupted gas supply.

34 Hydrogen (H 2 ) A flammable, colorless, odorless, compressed gas at high pressure. Grade % Purity O2 H2O THC Ar CO CO 2 N 2 Research (1) Ultra Pure Carrier (2) 1 (2) 3 Semiconductor (#) (2) 1 (2) 5 Ultra High Purity (2) 1 (2) 5 Zero Grade High Purity/High Prepurified Notes (1) Total of impurities listed shall not exceed 1 ppm. (2) CO + CO 2 shall not exceed 1 ppm (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Research 300 Ultra Pure Carrier (UPC) ft Valve Outlet HY R300 HY R HY R HY R 300 Semiconductor 300 Ultra High Purity (UHP) HY UPC300 HY UPC HY UPC HY UPC HY SM300 HY SM HY SM HY SM 300 Zero 300 High Purity / High HY UHP300 HY UHP HY UHP HY UHP HY Z300 HY Z HY Z HY Z 300 6K 3K Prepurified HY HP300 HY HP HY HP HY HP HY HP6K HY HP3K HY PP300 HY PP HY PP HY PP 2,400 2,400 2,400 2,400 2,400 2,400 6,000 3,500 2,400 Y12-N145 * Y * Y12-N245 * Y12-T265 * Y11-N145 * Y * Y11-T265 * Y11-N245 * Range (psig) D=0-100 E = F = G = 0-500** * Insert Range Code ** Single Stage Only E21 E12 E21 E23 E20 E11 E22 E20

35 Hydrogen (H 2 ) Cont. Molecular Weight F & 1 ATM % in Air Hydrogen, Compressed ID UN 1049 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry A flammable, colorless, odorless, compressed gas at high pressure. H2 He N2 Theoretical Plate Height (mm) Van Deemter Curves NITROGEN HELIUM HYDROGEN Linear Velocity (cm/sec) 1. Supelco isothermal, non-polar test mixture. 2. Optimum linear velocity set at beginning of each run When used as a carrier gas, hydrogen typically provides higher resolution at higher linear velocities than both helium and nitrogen. Consider using a hydrogen generator to supply your FID carrier gas and/or fuel gas.

36 Hydrogen Chloride (HCI) A colorless, toxic, corrosive, nonflammable liquefied gas with a sharp, suffocating odor; severely irritating to the upper respiratory tract and corrosive to eyes, skin, and mucous membranes. Specifications Minimum Purity O 2 + Ar H 2 O THC CO CO 2 N 2 Iron Metals VLSI % Electronic % Technical/NG 99.5% VLSI Y HC VLY HC VL HC VL 611 Certificate of Conformance available upon request. Y11-E464 * 330 A = A= B = B= C C = = E29 Electronic Y HC ELY HC EL HC EL 611 Cross Purge Assembly Y99-CPAM330 E50 Certificate of Conformance available upon request. * Insert Range Code Technical/NG Y HC NGTT HC NGY 611 Certificate of Conformance available upon request. Y11-C334C Y11-C330C Y11-E464C Cross Purge Assembly Y99-CPAM330 Y99-CPA4330 E49 E49 E29 E50 E50 Molecular Weight F & 1 ATM Nonflammable Hydrogen Chloride, Anhydrous ID UN 1050 U.S. DOT Hazard Class 2.3 Inhalation Hazard & Corrosive CAS Registry

37 Hydrogen Sulfide (H 2 S) A flammable, colorless, liquefied gas with rotten egg-like odor. Specifications Minimum Purity Chemically Pure (CP) 99.5% Chemically Pure (CP) HS CP HS CP 247 Certificate of Conformance available upon request. Y11-E444A330 Y11-E444B330 Y11-E444C330 Y11-E444D330 Y11-C444A330 Y11-C444B330 Y11-C444D330 Cross Purge Y99-CPA4330 Tee Purge Y99-TP4C E29 E29 E29 E29 E27 E27 E27 Molecular Weight F & 1 ATM % in Air Hydrogen Sulfide ID UN 1053 U.S. DOT Hazard Class 2.3 Inhalation Hazard & Flammable Gas CAS Registry

38 Isobutane (iso-c 4 H 10 ) A flammable, colorless liquefied gas. Specifications Minimum Purity H 2 O O 2 Other Hydrocarbons Sulfur N 2 Research 99.99% Instrument 99.5% Chemically Pure (CP) 99.0% Research BI R 31 0 LP BI RLP5 31 LP BI RLP1 31 Certificate of Analysis available upon request. Instrument 1/ 2 TON BI IHTN BI I 31 LP BI ILP5 31 Y * 510 A A = = 0-25 Y11-LC241 * 510 Y11-C440N 0-10 E11 E16 E Chemically Pure (CP) 1/ 2 TON BI CPHTN BI CP 31 LP BI CPLP5 31 * Insert Range Code Molecular Weight F & 1 ATM % in Air Isobutane ID UN 1969 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

39 Isobutylene (iso-c 4 H 8 ) A colorless, flammable liquefied gas with a detectable odor. Specifications Minimum Purity Other Hydrocarbons H 2 O Sulfur Instrument 99.5% Chemically Pure (CP) 99.0% Concentrations given are ppm by volume. Instrument IY I 24 LP IY ILP5 24 Y11-LC241 * 510 A A = = 0-25 B B = = 0-50 E16 Chemically Pure (CP) IY CP 24 LP IY CPLP5 24 * Insert Range Code Molecular Weight F & 1 ATM % in Air Isobutylene ID UN 1055 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

40 Krypton (Kr) A colorless, odorless, inert gas. Specifications Minimum Purity O 2 H 2 O THC CO CO 2 N 2 Xe CF 4 Research Plus % Research % Window 99.9% 20 Research Plus liters 300 9,000 KR RP LT 2,085 5,000 KR RP5000LT 1,400 1,000 KR RP1000LT 8 Research Certificate of Analysis is included ,000 KR RP LT 2,285 5,000 KR RP5000LT 1,400 2,500 KR RP825000LT 1,900 9A 250 KR RP9A250LT 1, LB 50 KR RLB50LT 1,400 Y12-N245 * Y * D = Y11-N245 * Y * E21 E12 E20 E11 Certificate of Analysis is included. window 300 7,500 KR W LT 1,0 * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Krypton, Compressed ID UN 1056 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

41 Methane (CH 4 ) A colorless, odorless, flammable compressed gas. Specifications Minimum Purity O 2 H 2 O CO/CO 2 C 2 H 6 Other HC H 2 N 2 C 3 H 8 C 3 H 6 Research % Ultra High Purity (UHP) 99.99% Chemically Pure (CP) 99.5% Research 300 Ultra High Purity (UHP) ft Certificate of Analysis is included Valve Outlet ME R300 ME R ME R ME R ME UHP300 ME UHP ME UHP ME UHP 2,400 2,400 Y12-N245 * Y * Y11-N245 * Y * Range (psig) D = *E = F = *G = * Only available for the N245 series E21 E12 E20 E11 * Insert Range Code Chemically Pure (CP) ME CP300 ME CP ME CP ME CP 2,400 Y12-N215 * Y11-N215 * D = F = * Insert Range Code E9 E8 Molecular Weight F & 1 ATM 5-15% in Air Methane, Compressed ID UN 1971 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

42 Methyl Chloride (CH 3 CI) A colorless, flammable liquefied gas with a slightly sweet odor. Specifications Minimum Purity Chemically Pure (CP) 99.5% Chemically Pure (CP) 1/ 2 TON MC CPHTN 59 1/ 4 TON MC CPA MC CP 59 Y11-C441A LP MC CPLP Manual Flow Control Valve Y E26 E112 Molecular Weight F & 1 ATM % in Air Methyl Choride ID UN 1063 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry Methylamine (CH 3 NH 2 ) A colorless, flammable liquefied gas with a characteristic fishy or ammonia-like odor. Specifications Minimum Purity Chemically Pure (CP) 99.5% Chemically Pure (CP) 1/ 2 TON MN CPHTN MN CP 30 Manual Flow Control Valve Y N/A E112 Certificate of Conformance is available upon request. Molecular Weight F & 1 ATM % in Air Methylamine, Anhydrous ID UN 1061 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry

43 Neon (Ne) A colorless, odorless, inert compressed gas. Grade % Purity O 2 H 2 O THC CO CO 2 Ar N 2 He Semiconductor (#) Research Ultra High Purity Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Semiconductor 300 Research 300 9A LB Ultra High Purity (UHP) liters 7,500 6,000 Valve Outlet NE SM LT NE SM6000LT 7,500 6, A LB 7,500 6, NE R LT NE R6000LT NE R0LT NE R9A100LT NE RLB50LT NE UHP LT NE UHP LT NE UHP0LT NE UHP9A100LT NE UHPLB50LT 2,400 2,400 1,900 2,400 1,900 Y12-N245 * Y * Y11-N245 * Y * Range (psig) A=0-25 B=0-50 D = *E = * Only available for the N245 series * Insert Range Code E21 E12 E20 E11 Molecular Weight F & 1 ATM Nonflammable Neon, Compressed ID UN 1065 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry

44 Nitric Oxide (NO) Grade A colorless, corrosive, poisonous, oxidizing gas. Minimum Purity Ultra High Purity (UHP) 99.9% Chemically Pure (CP) 99.5% Ultra High Purity (UHP) ft 3 Valve Outlet 150A NC UHP15A 500 Range (psig) Chemically Pure (CP) Certificate of Conformance is available upon request Certificate of Conformance is available upon request. NC CP NC CP Y12-C445 * 660 Y11-C444 * 660 Cross Purge Y99-CPA4 * 660 A=0-30 B=0-60 D=0-100 E28 E27 E50 * Insert Range Code Molecular Weight F & 1 ATM Nonflammable Nitric Oxide, Compressed ID UN 1660 U.S. DOT Hazard Class 2.3, 5.1, 8 Inhalation Hazard, Oxidizer, Corrosive CAS Registry

45 Nitrogen (N 2 ) Continued A colorless, odorless, nonflammable gas or a colorless, odorless, nonflammable cryogenic liquid. Grade % Purity O 2 H 2 O THC CO CO 2 H 2 NO X SO 2 Research Plus Research Semiconductor (#) (1) 1 (1) Continuous Emissions Monitoring Vehicle Emissions Part Ultra Pure Carrier (UPC) (1) 1 (1) Ultra High Purity (UHP) (1) 1 (1) LaserPlus - Ultra LaserPlus Laser Zero Grade High Purity/High Notes Purities do not include Argon <100 ppm (1) Combined CO and CO 2 shall not exceed 1 ppm. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Research Plus 300 Research 300 Semiconductor 300 Continuous Emissions Monitoring (CEM) Vehicle Emissions Part 1065 ft Valve Outlet NI RP300 NI RP NI RP NI RP NI R300 NI R NI R NI R NI SM300 NI SM A NI CZ300 NI CZ NI CZ15A NI CZ NI CZ Batch Complies with 40 CFR Part 72.2 for Continous Emission Monitoring A Batch Complies with 40 CFR Part NI VE300 NI VE NI VE15A NI VE NI VE Y12-N245 * Y12-T265 * Y11-N245 * Y * Y11-T265 * Y12-N245 * Y * Y11-N245 * Y * Range (psig) D=0-100 * Insert Range Code D=0-100 E = F = G = 0-500** * Insert Range Code ** Single Stage Only E21 E23 E20 E12 E22 E21 E12 E20 E11

46 Nitrogen (N 2 ) Cont. Ultra Pure Carrier (UPC) Ultra High Purity (UHP) 300 ft Valve Outlet A colorless, odorless, inert compressed gas at high pressure. NI UPC300 NI UPC NI UPC NI UPC 300 Zero 300 High Purity / High Liquid NI UHP300 NI UHP NI UHP NI UHP NI Z300 NI Z NI Z NI Z 300 6K 3K NI HP300 NI HP NI HP NI HP NI HP6K NI HP3K Various sizes, volumes, and grades available upon request. 6,000 3,500 Y12-N245 * Y * Y11-N245 * Y * Range (psig) D=0-100 E = F = G = 0-500** * Insert Range Code ** Single Stage Only Y11-N198J Y11-N198K Y11-820H 0-0-4, ,000 Insert Range Code E21 E12 E20 E11 E62 E62 E61 Molecular Weight F & 1 ATM Nonflammable Nitrgen, Compressed ID UN 1066 U.S. DOT Hazard Class 2.2 Nonflammable Gas CAS Registry Airgas offers a wide range of gas supply modes, including high-pressure cylinders, liquid cylinders (or dewars), MicroBulk and bulk. Your Airgas spe cialty gas representative can help you decide which option is best for your operation. Be sure to ask about our unique line of specialty gas equipment, including automatic changeover systems for uninterrupted gas supply.

47 Nitrogen Trifluoride (NF 3 ) An odorless, colorless, noncombustible, oxidizing gas. Purity Specifications % Purity O 2 + Ar N 2 CF 4 CO CO 2 N 2 O SF 6 H 2 O Acidity (HF) Semiconductor Semiconductor (DISS) NT SM300DS 1,450 A= NT SMDS 1,450 Y12-HP950 * 640 D=0-100 E28 * Insert Range Code Molecular Weight º F Nonflammable Nitrogen Trifluoride ID UN 2451 U.S. DOT Hazard Class 2.2, (5.1) Nonflammable Gas, Oxidizer CAS Registry

48 Nitrous Oxide (N 2 O) A colorless, oxidizing liquified gas. Grade % Purity N 2 O 2 + Ar THC CO CO 2 H 2 O NH 3 NO NO 2 VLSI Semiconductor (#) Ultra High Purity Atomic Absorption/CP Cryocath (1) Cryocath (1) Unanalyzed Notes (1) Cryocath Grade filled to 10. in customer owned cylinders equipped with CGA 326 valve. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. VLSI 150A 33A Semiconductor 150A Ultra High Purity (UHP) Atomic Absorption/CP (AA) Valve Outlet NS VL15A NS VL33A NS SM NS SM15A NS UHP NS UHP NS AA NS AA Y12-C445 * 326 Y11-C444 * 326 Range (psig) D=0-100 E = * Insert Range Code Y * 326 Y * 326 D=0-100 E = * Insert Range Code E28 E27 E9 E8 Molecular Weight F & 1 ATM Oxidizer Nitrious Oxide ID UN 1070 U.S. DOT Hazard Class 2.2 Nonflammable Gas & Oxidizer CAS Registry Nitrous Oxide is also available in medical and food grades. Ask your Airgas representative for details.

49 Oxygen (O 2 ) A colorless, odorless, oxidizing compressed gas. Grade % Purity H 2 O THC CO CO 2 Ar N 2 Kr Research Ultra Pure Carrier (UPC) Semiconductor (#) Ultra High Purity (UHP) LaserPlus Zero Notes (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Research 300 Ultra Pure Carrier (UPC) ft Semiconductor 300 Ultra High Purity (UHP) Valve Outlet OX R300 OX R OX R OX UPC300 OX UPC OX UPC OX SM300 OX SM 300 Zero OX UHP300 OX UHP OX UHP OX Z300 OX Z OX Z Y * OX Range (psig) D=0-100 * Insert Range Code E56 Molecular Weight F & 1 ATM Oxidizer Oxygen, Compressed ID UN 1072 U.S. DOT Hazard Class 2.2 Nonflammable Gas & Oxidizer CAS Registry For LaserPLUS Applications, see SA17.

50 Propane (C 3 H 8 ) A flammable, colorless liquefied gas. Grade % Purity H 2 O O 2 Other HC s C 3 H 6 N 2 CO 2 Semiconductor* (#) Research* (1) Instrument* (1) Chemically Pure* 99.0 Notes * Non-odorized product less than 1ppm sulfurs (1) Other HC s are defined as Methane, Ethane, and Ethylene. (#) Semiconductor grade valve material is brass for standard CGA connection. s can be provided with SS or DISS valves and additional proper regulator options upon request. Semiconductor LP5 Research LP5 LP1 Instrument Chemically Pure (CP) Valve Outlet PR SM PR SMLP PR R PR RLP5 PR RLP1 1/2 Ton LP PR IHTN PR I PR ILP5 1/2 Ton LP PR CPHTN PR CP PR CPLP Y * 510 Y * 510 Range (psig) D=0-100 * Insert Range Code D=0-100 * Insert Range Code E11 E8 Molecular Weight F & 1 ATM % in Air Propane ID UN 1978 U.S. DOT Hazard Class 2.1 Flammable Gas CAS Registry