Agent Name

Chromium(III) phosphate

CAS Number

7789-04-0

Formula

Cr.H3-O4-P

Major Category

Metals

Synonyms

Arnaudon's Green; Chromic phosphate; Chromium monophosphate; Chromium orthophosphate; Phosphoric acid chromium (III) salt; Phosphoric acid, chromium(3+) salt (1:1); [ChemIDplus]

Category

Chromium Compounds, Inorganic

Description

Gray-brown to black solid; [Merck Index] Insoluble in water; [MSDSonline]

Sources/Uses

Used in pigments, wash primers, and catalysts; [Merck Index]

Comments

CrIII compounds do not cause chrome ulcerations but may cause allergic dermatitis in workers with prior sensitization to CrVI compounds. [ILO Encyclo] CrIII is an essential trace mineral in the human diet. [ATSDR Case Studies] Toxic by ingestion; "May be harmful if absorbed through skin or inhaled." "Stable under recommended storage conditions." [MSDSonline] See "Chromium."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

0.5 mg/m3, as Cr

PEL (OSHA)

0.5 mg/m3, as Cr

Explanatory Notes

VP = practically zero; mp = 1900 deg C; [MSDSonline]

Flammability (NFPA)

1: Must be preheated

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: