Disilane,1,1,1,2,2,2-hexachloro-

1.IDENTIFICATIONOFTHESUBSTANCE/MIXTUREANDOFTHECOMPANY/UNDERTAKING Product Name Hexachlorodisilane 2.HAZARDS IDENTIFICATION Classification of the substance or mixture According to Regulation (EC) No1272/2008 Skin corrosion (Category 1B) According to European Directive 67/548/EEC as amended. Reacts violently with water. Causes burns. Label elements Pictogram Signal word Hazard statement(s) H314 EUH014 Precautionary statement(s) P280 P305 + P351 + P338 P310 Hazard symbol(s) C R-phrase(s) R14 R34 S-phrase(s) S26 S36/37/39 S45 Danger Causes severe skin burns and eye damage. Reacts violently with water. 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. Corrosive Reacts violently with water. Causes burns. 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). Other hazards Reacts violently with water. 3. COMPOSITION/INFORMATION ON INGREDIENTS Formula Molecular Weight : : Cl6Si2 268,89 g/mol CAS-No. EC-No. Index-No. Classification Concentration Hexachlorodisilane 13465-77-5 236-704-1 - Skin Corr. 1B; H314, EUH014 - C, R14 - R34 For the full text of the H-Statements mentioned in this Section, see Section 16. 4. 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. 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. 5. FIRE-FIGHTING MEASURES Suitable extinguishing media Carbon dioxide (CO2) Dry powder Extinguishing media which shall not be used for safety reasons Water Special protective equipment for fire-fighters Wear self contained breathing apparatus for fire fighting if necessary. 6. ACCIDENTAL RELEASE MEASURES Personal precautions Use personal protective equipment. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions Do not let product enter drains. Methods and materials for containment and cleaning up Soak up with inert absorbent material and dispose of as hazardous waste. Do not flush with water. Keep in suitable, closed containers for disposal. 7. HANDLING AND STORAGE Precautions for safe handling Avoid inhalation of vapour or mist. Normal measures for preventive fire protection. Conditions for safe storage Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. Handle and store under inert gas. 8. EXPOSURE CONTROLS/PERSONAL PROTECTION Personal protective equipment Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multi-purpose combination (US) or type ABEK (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). Hand protection The selected protective gloves have to satisfy the specifications of EU Directive 89/686/EEC and the standard EN 374 derived from it. Handle with gloves. Eye protection Tightly fitting safety goggles. Faceshield (8-inch minimum). Skin and body protection Choose body protection according to the amount and concentration of the dangerous substance at the work place. Hygiene measures Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday. 9. PHYSICAL AND CHEMICAL PROPERTIES Appearance Form Colour Safety data pH Melting point Boiling point Flash point Ignition temperature Lower explosion limit Upper explosion limit Density Water solubility clear, liquid colourless no data available no data available 144 - 145,5 °C - lit. not applicable no data available no data available no data available 1,562 g/cm3 at 25 °C no data available 10. STABILITY AND REACTIVITY Chemical stability Stable under recommended storage conditions. Possibility of hazardous reactions Reacts violently with water. Conditions to avoid Exposure to moisture. Materials to avoid Strong bases, Alcohols, Reacts violently with water. Hazardous decomposition products Hazardous decomposition products formed under fire conditions. - Hydrogen chloride gas, silicon oxides 11. TOXICOLOGICAL INFORMATION Acute toxicity no data available Skin corrosion/irritation no data available Serious eye damage/eye irritation no data available Respiratory or skin sensitization no data available Germ cell mutagenicity no data available Carcinogenicity IARC: No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC. Reproductive toxicity no data available Specific target organ toxicity - single exposure no data available Specific target organ toxicity - repeated exposure no data available Aspiration hazard no data available Potential health effects Inhalation Ingestion Skin Eyes May be harmful 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., Cough, Shortness of breath, Headache, Nausea Additional Information RTECS: no data available 12. ECOLOGICAL INFORMATION Toxicity no data available Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available PBT and vPvB assessment no data available Other adverse effects no data available 13. DISPOSAL CONSIDERATIONS Product Observe all federal, state, and local environmental regulations. Contact a licensed professional waste disposal service to dispose of this material. Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. Contaminated packaging Dispose of as unused product. 14. TRANSPORT INFORMATION ADR/RID UN-Number: 2987 Class: 8 Packing group: II Proper shipping name: CHLOROSILANES, CORROSIVE, N.O.S. (Hexachlorodisilane) IMDG UN-Number: 2987 Class: 8 Packing group: II EMS-No: F-A, S-B Proper shipping name: CHLOROSILANES, CORROSIVE, N.O.S. Marine pollutant: No IATA UN-Number: 2987 Class: 8 Packing group: II Proper shipping name: Chlorosilanes, corrosive, n.o.s. 15. REGULATORY INFORMATION This safety datasheet complies with the requirements of Regulation (EC) No. 1907/2006. 16. OTHER INFORMATION Text of H-code(s) and R-phrase(s) mentioned in Section 3 EUH014 H314 Skin Corr. C R14 R34 Reacts violently with water. Causes severe skin burns and eye damage. Skin corrosion Corrosive Reacts violently with water. Causes burns. 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. Lookchem 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.

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