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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). Reagent 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.