Agent Name

Chromic oxide hydrated

CAS Number

12001-99-9

Formula

Unspecified

Major Category

Metals

Synonyms

CI 77289; Chromium hydroxide green; Hydrated chromium sesquioxide; Pigment green 18; C.I. Pigment Green 18; [ChemIDplus] Guignet's green; [Ullmann]

Category

Chromium Compounds, Inorganic

Description

Light green finely divided powder; [MSDSonline] A brilliant emerald-green pigment called Guignet's green; [Ullmann]

Sources/Uses

A purified colorant used to color various foods, drugs, and cosmetics; [MSDSonline] "Hydrated chromium oxide green" is a pigment similar to Guignet's green; it is prepared differently and has less intense color; [Ullmann]

Comments

See "Chromium III oxide."

Exposure Assessment
TLV (ACGIH)

0.003 mg/m3, as Cr(III), inhalable particulate matter

PEL (OSHA)

0.5 mg/m3

Explanatory Notes

Soluble Cr(III) compounds are assigned RSEN and DSEN; "Trivalent chromium compounds--with the exception of chromium(III) acetate, chromium(III) chloride hexahydrate, and chromium(III) nitrate--are insoluble or poorly soluble in water . . ." [ACGIH]

Adverse Effects
IARC Carcinogen

Not Classifiable

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Other Information

No other related information on this agent was found.