safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 date of compilation: 2015-10-12 Version: 1.0 en SECTION 1: Identification of the substance/mixture and of the company/undertaking 1.1 Product identifier Identification of the substance Osmium tetraoxide Article number 8371 Registration number (REACH) This information is not available. Index No 076-001-00-5 EC number 244-058-7 CAS number 20816-12-0 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses: laboratory chemical 1.3 Details of the supplier of the safety data sheet Carl Roth GmbH + Co KG Schoemperlenstr. 3-5 D-76185 Karlsruhe Germany Telephone: +49 (0) 721 - 56 06 0 Telefax: +49 (0) 721 - 56 06 149 e-mail: [email protected] Website: www.carlroth.de Competent person responsible for the safety data : Department Health, Safety and Environment sheet e-mail (competent person) : [email protected] 1.4 Emergency telephone number Emergency information service Poison Centre Munich: +49/(0)89 19240 SECTION 2: Hazards identification 2.1 Classification of the substance or mixture Classification according to Regulation (EC) No 1272/2008 (CLP) Classification acc. to GHS Section Hazard class Hazard class and cat- Hazard egory state- ment 3.1O acute toxicity (oral) (Acute Tox. 2) H300 3.1D acute toxicity (dermal) (Acute Tox. 1) H310 3.1I acute toxicity (inhal.) (Acute Tox. 2) H330 3.2 skin corrosion/irritation (Skin Corr. 1B) H314 3.3 serious eye damage/eye irritation (Eye Dam. 1) H318 United Kingdom (en) Page 1 / 13 safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 Remarks For full text of Hazard- and EU Hazard-statements: see SECTION 16. 2.2 Label elements Labelling according to Regulation (EC) No 1272/2008 (CLP) Signal word Danger Pictograms Hazard statements H300+H310+H330 Fatal if swallowed, in contact with skin or if inhaled. H314 Causes severe skin burns and eye damage. Precautionary statements Precautionary statements - prevention P280 Wear protective gloves/protective clothing/eye protection/face protection. Precautionary statements - response P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P302+P350 IF ON SKIN: Gently wash with plenty of soap and water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P309+P311 IF exposed or if you feel unwell: Call a POISON CENTER or doctor/physician. Labelling of packages where the contents do not exceed 125 ml Signal word: Danger Symbol(s) H300+H310+H330 Fatal if swallowed, in contact with skin or if inhaled. H314 Causes severe skin burns and eye damage. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P302+P350 IF ON SKIN: Gently wash with plenty of soap and water. P304+P340 IF INHALED: Remove person to fresh air and keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. 2.3 Other hazards There is no additional information. United Kingdom (en) Page 2 / 13 safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 SECTION 3: Composition/information on ingredients 3.1 Substances Name of substance Osmium tetraoxide Index No 076-001-00-5 EC number 244-058-7 CAS number 20816-12-0 Molecular formula OsO₄ g Molar mass 254,2 /mol SECTION 4: First aid measures 4.1 Description of first aid measures General notes Take off immediately all contaminated clothing. Self-protection of the first aider. Following inhalation Call a physician immediately. If breathing is irregular or stopped, administer artificial respiration. Following skin contact After contact with skin, wash immediately with plenty of water. Immediate medical treatment re- quired because corrosive injuries that are not treated are hard to cure. Following eye contact In case of contact with eyes flush immediately with plenty of flowing water for 10 to 15 minutes hold- ing eyelids apart and consult an ophthalmologist. Protect uninjured eye. Following ingestion Rinse mouth immediately and drink plenty of water. Call a physician immediately. If swallowed danger of perforation of the esophagus and the stomach (strong corrosive effects). 4.2 Most important symptoms and effects, both acute and delayed Corrosion, Cough, Diarrhoea, Risk of blindness, Corneal opacity, Gastric perforation, Risk of serious damage to eyes 4.3 Indication of any immediate medical attention and special treatment needed none United Kingdom (en) Page 3 / 13 safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 SECTION 5: Firefighting measures 5.1 Extinguishing media Suitable extinguishing media Co-ordinate fire-fighting measures to the fire surroundings water spray, foam, dry extinguishing powder, carbon dioxide (CO2) Unsuitable extinguishing media water jet 5.2 Special hazards arising from the substance or mixture Non-combustible. Oxidising. Hazardous combustion products May produce toxic fumes of carbon monoxide if burning. 5.3 Advice for firefighters Fight fire with normal precautions from a reasonable distance. Wear self-contained breathing appar- atus. Wear full chemical protective clothing. SECTION 6: Accidental release measures 6.1 Personal precautions, protective equipment and emergency procedures For non-emergency personnel Wearing of suitable protective equipment (including personal protective equipment referred to under Section 8 of the safety data sheet) to prevent any contamination of skin, eyes and personal clothing. Avoid contact with skin, eyes and clothes. Do not breathe dust. Control of dust. 6.2 Environmental precautions Keep away from drains, surface and ground water. 6.3 Methods and material for containment and cleaning up Advices on how to contain a spill Covering of drains. Advices on how to clean up a spill Take up mechanically. Control of dust. Other information relating to spills and releases Place in appropriate containers for disposal. Ventilate affected area. Reference to other sections Hazardous combustion products: see section 5. Personal protective equipment: see section 8. Incompatible materials: see section 10. Disposal considerations: see section 13. United Kingdom (en) Page 4 / 13 safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 SECTION 7: Handling and storage 7.1 Precautions for safe handling Use extractor hood (laboratory). Handle and open container with care. Advice on general occupational hygiene When using do not eat or drink. Thorough skin-cleansing after handling the product. 7.2 Conditions for safe storage, including any incompatibilities Store in a well-ventilated place. Keep container tightly closed. Store in a dry place. Store in a place ac- cessible by authorized persons only. Incompatible substances or mixtures Observe hints for combined storage. Consideration of other advice Store locked up. • Ventilation requirements Use local and general ventilation. • Specific designs for storage rooms or vessels Recommended storage temperature: 4 °C. 7.3 Specific end use(s) No information available. SECTION 8: Exposure controls/personal protection 8.1 Control parameters National limit values Occupational exposure limit values (Workplace Exposure Limits) not relevant Coun- Name of agent CAS No Nota- Identifier TWA STEL Source try tion [mg/m³] [mg/m³] GB osmium tetraoxide 20816-12-0 Os WEL 0,002 0,006 EH40/2005 Notation Os Calculated as Os (osmium) STEL Short-term exposure limit: a limit value above which exposure should not occur and which is related to a 15- minute period unless otherwise specified TWA Time-weighted average (long-term exposure limit): measured or calculated in relation to a reference period of 8 hours time-weighted average 8.2 Exposure controls Individual protection measures (personal protective equipment) United Kingdom (en) Page 5 / 13 safety data sheet according to Regulation (EC) No. 1907/2006 (REACH), amended by 2015/830/EU Osmium tetraoxide ≥99,95 %, p.a. for electron microscopy article number: 8371 Eye/face protection Use safety goggle with side protection. Wear face protection. Skin protection • hand protection Wear suitable gloves. Chemical protection gloves are suitable, which are tested according to EN 374. Check leak-tightness/impermeability prior to use. For special purposes, it is recommended to check the resistance to chemicals of the protective gloves mentioned above together with the supplier of these gloves. • type of material NBR (Nitrile rubber) • material thickness >0,11 mm. • breakthrough times of the glove material >480 minutes (permeation: level 6) • other protection measures Take recovery periods for skin regeneration. Preventive skin protection (barrier creams/ointments) is recommended. Respiratory protection Respiratory protection necessary at: Dust formation. Particulate