Click http//www.guidechem.com/cas-744/7446-09-5.html for suppliers of this product Sulfur dioxide (cas 7446-09-5) MSDS 1. 1.1 IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING Product identifiers Product name Product Number Brand Index-No. CAS-No. Sulfur dioxide 84692 Fluka 016-011-00-9 7446-09-5 1.2 Relevant identified uses of the substance or mixture and uses advised against 2. 2.1 2.2 Identified uses Laboratory chemicals, Manufacture of substances HAZARDS IDENTIFICATION Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP] Gases under pressure (Liquefied gas) Acute toxicity, Inhalation (Category 3) Skin corrosion (Category 1B) Classification according to EU Directives 67/548/EEC or 1999/45/EC Toxic by inhalation. Causes burns. Label elements Labelling according Regulation (EC) No 1272/2008 [CLP] Pictogram Signal word Hazard statement(s) H280 H314 H331 Precautionary statement(s) P261 P280 P305 + P351 + P338 P310 P410 + P403 Danger Contains gas under pressure; may explode if heated. Causes severe skin burns and eye damage. Toxic if inhaled. Supplemental Hazard none Statements According to European Directive 67/548/EEC as amended. Hazard symbol(s) Avoid breathing gas. Wear protective gloves/ protective clothing/ eye protection/ face protection. IF IN EYES Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/ physician. Protect from sunlight. Store in a well-ventilated place. 2.3 R-phrase(s) R23 R34 S-phrase(s) S9 S26 S36/37/39 S45 Other hazards - none Toxic by inhalation. Causes burns. Keep container in a well-ventilated place. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). 3. 3.1 COMPOSITION/INFORMATION ON INGREDIENTS Substances
Formula Molecular Weight Component Sulphur dioxide CAS-No. EC-No. Index-No. O2S 64,06 g/mol 7446-09-5 231-195-2 016-011-00-9 Concentration - 4. 4.1 4.2 4.3 FIRST AID MEASURES Description of first aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. Most important symptoms and effects, both acute and delayed Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin., bronchoconstriction, pulmonary edema Indication of any immediate medical attention and special treatment needed 5. 5.1 5.2 5.3 5.4 6. 6.1 6.2 6.3 6.4 7. 7.1 7.2 7.3 FIREFIGHTING MEASURES Extinguishing media Suitable extinguishing media Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. Special hazards arising from the substance or mixture Sulphur oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information Use water spray to cool unopened containers. ACCIDENTAL RELEASE MEASURES Personal precautions, protective equipment and emergency procedures Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Methods and materials for containment and cleaning up Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations (see section 13). Reference to other sections For disposal see section 13. HANDLING AND STORAGE Precautions for safe handling Avoid contact with skin and eyes. Avoid inhalation of vapour or mist. Keep away from sources of ignition - No smoking. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Contents under pressure. Specific end uses
8. 8.1 8.2 EXPOSURE CONTROLS/PERSONAL PROTECTION Control parameters Components with workplace control parameters Exposure controls Appropriate engineering controls Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product. Personal protective equipment Eye/face protection Tightly fitting safety goggles. Faceshield (8-inch minimum). Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Skin protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of 9. 9.1 contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands. The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Body Protection Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace. Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type AXBEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties a) b) c) d) e) f) g) h) Appearance Odour Odour Threshold ph Melting point/freezing point Initial boiling point and boiling range Flash point Evaporation rate Form Liquefied gas Melting point/range -73 C - lit. -10 C - lit. i) Flammability (solid, gas) j) k) Upper/lower flammability or explosive limits Vapour pressure 2.372 hpa at 21 C l) Vapour density 2,21 - (Air = 1.0) m) Relative density 1,25 g/ml at 25 C n) o) p) q) r) s) Water solubility Partition coefficient n- octanol/water Autoignition temperature Decomposition temperature Viscosity Explosive properties t) Oxidizing properties 9.2 Other safety information The substance or mixture is classified as oxidizing with the category 1.
10. 10.1 10.2 10.3 10.4 10.5 10.6 11. 11.1 STABILITY AND REACTIVITY Reactivity Chemical stability Possibility of hazardous reactions Conditions to avoid Incompatible materials Strong reducing agents, Zinc, Strong oxidizing agents Hazardous decomposition products Other decomposition products - TOXICOLOGICAL INFORMATION Information on toxicological effects Acute toxicity LC50 Inhalation - rat - 1 h - 2520 ppm Skin corrosion/irritation Serious eye damage/eye irritation Respiratory or skin sensitization Germ cell mutagenicity Carcinogenicity This product is or contains a component that is not classifiable as to its carcinogenicity based on its IARC, ACGIH, NTP, or EPA classification. IARC Reproductive toxicity 3 - Group 3 Not classifiable as to its carcinogenicity to humans (Sulphur dioxide) Specific target organ toxicity - single exposure Specific target organ toxicity - repeated exposure Aspiration hazard Potential health effects Inhalation Ingestion Skin Eyes Toxic if inhaled. Material is extremely destructive to the tissue of the mucous membranes and upper respiratory tract. May be harmful if swallowed. Causes burns. May be harmful if absorbed through skin. Causes skin burns. Causes eye burns. Signs and Symptoms of Exposure Material is extremely destructive to tissue of the mucous membranes and upper respiratory tract, eyes, and skin., bronchoconstriction, pulmonary edema Additional Information RTECS WS4550000 12. 12.1 12.2 ECOLOGICAL INFORMATION Toxicity Persistence and degradability
12.3 12.4 12.5 12.6 13. 13.1 Bioaccumulative potential Mobility in soil Results of PBT and vpvb assessment Other adverse effects DISPOSAL CONSIDERATIONS Waste treatment methods Product Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company. Contaminated packaging Dispose of as unused product. 14. 14.1 TRANSPORT INFORMATION UN number ADR/RID 1079 IMDG 1079 IATA 1079 14.2 UN proper shipping name ADR/RID SULPHUR DIOXIDE IMDG SULPHUR DIOXIDE IATA Sulphur dioxide Passenger Aircraft Not permitted for transport Cargo Aircraft Not permitted for transport 14.3 Transport hazard class(es) ADR/RID 2.3 (8) IMDG 2.3 (8) 14.4 Packaging group ADR/RID - IMDG - 14.5 Environmental hazards ADR/RID no IMDG Marine pollutant no 14.6 Special precautions for user IATA 2.3 (8) IATA - IATA no 15. 15.1 15.2 REGULATORY INFORMATION This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006. Safety, health and environmental regulations/legislation specific for the substance or mixture Chemical Safety Assessment 16. OTHER INFORMATION Further information The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The information this document is based on the resent state of our knowledge and is applicable to the product with regard to appropriate safety precautions. It does not represent any guarantee of the properties of the product. guidechem shall not be held liable for any damage resulting from handling or from contact with the above product. See reverse side of invoice or packing slip for additional terms and conditions of sale.