Chromium(III) phosphate

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; [ACGIH]

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."

Biomedical References

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

0.5 mg/m3

Explanatory Notes

Soluble Cr(III) compounds are assigned RSEN and DSEN; [ACGIH]

must be preheated

Not classifiable

Not Classifiable

Processes

Industrial Processes with risk of exposure:

• Painting (Pigments, Binders, and Biocides)