Selenium dioxide

1. 1.1 IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING Product identifiers Product name Product Number Brand Index-No. CAS-No. : : : : : Selenium dioxide 200107 Anonymous 034-002-00-8 7446-08-4 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Manufacture of substances 2. 2.1 2.2 HAZARDS IDENTIFICATION Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 [EU-GHS/CLP] Acute toxicity, Inhalation (Category 3) Acute toxicity, Oral (Category 3) Specific target organ toxicity - repeated exposure (Category 2) Acute aquatic toxicity (Category 1) Chronic aquatic toxicity (Category 1) Classification according to EU Directives 67/548/EEC or 1999/45/EC Toxic by inhalation and if swallowed. Danger of cumulative effects. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Label elements Labelling according Regulation (EC) No 1272/2008 [CLP] Pictogram Signal word Hazard statement(s) H301 H331 H373 H410 Danger Toxic if swallowed. Toxic if inhaled. May cause damage to organs through prolonged or repeated exposure. Very toxic to aquatic life with long lasting effects. Precautionary statement(s) P261 P273 P301 + P310 P311 P501 Supplemental Hazard Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray. Avoid release to the environment. IF SWALLOWED: Immediately call a POISON CENTER or doctor/ physician. Call a POISON CENTER or doctor/ physician. Dispose of contents/ container to an approved waste disposal plant. none Statements According to European Directive 67/548/EEC as amended. Hazard symbol(s) R-phrase(s) R23/25 R33 R50/53 Toxic by inhalation and if swallowed. Danger of cumulative effects. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. S-phrase(s) S20/21 S28 S45 S60 S61 When using do not eat, drink or smoke. After contact with skin, wash immediately with plenty of soap and water. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). This material and its container must be disposed of as hazardous waste. Avoid release to the environment. Refer to special instructions/ Safety data sheets. 2.3 3. 3.1 Other hazards Vesicant. COMPOSITION/INFORMATION ON INGREDIENTS Substances Formula Molecular Weight Component Selenium dioxide : : O2Se 110,96 g/mol Concentration CAS-No. EC-No. Index-No. 7446-08-4 231-194-7 034-002-00-8 - 4. 4.1 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 Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician. In case of eye contact Flush eyes with water as a precaution. If swallowed Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. 4.2 4.3 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 8. 8.1 8.2 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., Cough, Shortness of breath, Headache, Nausea Indication of any immediate medical attention and special treatment needed no data available 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 Selenium/selenium oxides Advice for firefighters Wear self contained breathing apparatus for fire fighting if necessary. Further information no data available ACCIDENTAL RELEASE MEASURES Personal precautions, protective equipment and emergency procedures Wear respiratory protection. Avoid dust formation. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust. Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Discharge into the environment must be avoided. Methods and materials for containment and cleaning up Pick up and arrange disposal without creating dust. Sweep up and shovel. Keep in suitable, closed containers for disposal. Reference to other sections For disposal see section 13. HANDLING AND STORAGE Precautions for safe handling Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed.Normal measures for preventive fire protection. Conditions for safe storage, including any incompatibilities Store in cool place. Keep container tightly closed in a dry and well-ventilated place. hygroscopic Specific end uses no data available 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 Face shield and safety glasses 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 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 particle respirator type N99 (US) or type P2 (EN 143) 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). 9. 9.1 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: solid no data available no data available no data available Melting point/range: 315 °C no data available not applicable no data available i) Flammability (solid, gas) no data available j) k) l) Upper/lower flammability or explosive limits Vapour pressure Vapour density no data available 1 hPa at 157 °C no data available m) Relative density 3,950 g/cm3 n) o) p) q) r) s) Water solubility Partition coefficient: n- octanol/water Autoignition temperature Decomposition temperature Viscosity Explosive properties no data available no data available no data available no data available no data available no data available t) Oxidizing properties no data available 9.2 10. 10.1 10.2 10.3 10.4 10.5 10.6 11. 11.1 Other safety information no data available STABILITY AND REACTIVITY Reactivity no data available Chemical stability no data available Possibility of hazardous reactions no data available Conditions to avoid Avoid moisture. Incompatible materials Organic materials, Strong acids, Ammonia Hazardous decomposition products Other decomposition products - no data available TOXICOLOGICAL INFORMATION Information on toxicological effects Acute toxicity LD50 Oral - rat - 68,1 mg/kg Remarks: Behavioral:Somnolence (general depressed activity). Behavioral:Convulsions or effect on seizure threshold. 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: 3 - Group 3: Not classifiable as to its carcinogenicity to humans (Selenium dioxide) Reproductive toxicity Reproductive toxicity - Gerbil - Subcutaneous Paternal Effects: Testes, epididymis, sperm duct. Paternal Effects: Prostate, seminal vessicle, Cowper's gland, accessory glands. Reproductive toxicity - rat - Intraperitoneal Paternal Effects: Testes, epididymis, sperm duct. Specific target organ toxicity - single exposure no data available Specific target organ toxicity - repeated exposure May cause damage to organs through prolonged or repeated exposure. Aspiration hazard no data available Potential health effects Inhalation Toxic if inhaled. May cause respiratory tract irritation. Ingestion Skin Eyes Toxic if swallowed. Harmful if absorbed through skin. May cause skin irritation. May cause eye irritation. 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: VS8575000 12. 12.1 ECOLOGICAL INFORMATION Toxicity Toxicity to fish Toxicity to algae LC50 - Pimephales promelas (fathead minnow) - 2,9 mg/l - 96,0 h Growth inhibition EC50 - Scenedesmus acutus - 0,1 mg/l - 3 d Growth inhibition LOEC - Pseudokirchneriella subcapitata - 24,63 mg/l - 6 d 12.2 12.3 12.4 12.5 12.6 13. 13.1 14. 14.1 Persistence and degradability no data available Bioaccumulative potential no data available Mobility in soil no data available Results of PBT and vPvB assessment no data available Other adverse effects Very toxic to aquatic life with long lasting effects. DISPOSAL CONSIDERATIONS Waste treatment methods Product Offer surplus and non-recyclable solutions to a licensed disposal company. 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. TRANSPORT INFORMATION UN number 14.2 ADR/RID: 3283 UN proper shipping name IMDG: 3283 IATA: 3283 ADR/RID: IMDG: IATA: SELENIUM COMPOUND, SOLID, N.O.S. (Selenium dioxide) SELENIUM COMPOUND, SOLID, N.O.S. (Selenium dioxide) Selenium compound, solid, n.o.s. (Selenium dioxide) 14.3 Transport hazard class(es) ADR/RID: 6.1 14.4 Packaging group ADR/RID: III 14.5 Environmental hazards ADR/RID: no 14.6 Special precautions for user no data available IMDG: 6.1 IMDG: III IMDG Marine pollutant: no IATA: 6.1 IATA: III IATA: no 15. 15.1 15.2 16. 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 no data available Chemical Safety Assessment no data available 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. 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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