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osmium tetraoxide; osmic acid

CAS 20816-12-0 · O4Os
Hazard class
Danger — Toxic, Corrosive
Pictograms
ToxicCorrosive
H-statements
  • H330 Fatal if inhaled
  • H310 Fatal in contact with skin
  • H300 Fatal if swallowed
  • H314 Causes severe skin burns and eye damage
Workplace exposure limits
NIOSH REL TWA 0.002 mg/m3 (0.0002 ppm) ST 0.006 mg/m3 (0.0006 ppm) None available
OSHA PEL TWA 0.002 mg/m3
IDLH 1 mg/m3
Occupational exposure limits — NIOSH Pocket Guide.
Synonyms
OSMIUM TETROXIDE · Osmium tetraoxide · Osmic acid · tetraoxoosmium · Perosmic oxide · Osmium(VIII) oxide · Osmic acid anhydride · Osmium oxide (OsO4), (T-4)-
Molecular weight
254.2 g/mol
Browse similar
Toxic · Corrosive
Data source
Harmonised classification ECHA — EU CLP Annex VI
Legally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
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GHS/CLP classification from authoritative registries (ECHA Annex VI, PubChem). SNRL is a free chemical safety search. Browse categories · API · Console
Guide only. This information is compiled from published safety data sheets and public regulatory registries and is believed correct at the date of publication shown. It is not all-inclusive and shall be used only as a guide. It does not replace the manufacturer’s current Safety Data Sheet, which governs in all cases. SNRL shall not be held liable for any injury, loss or damage resulting from handling of, or contact with, any product listed.