Chromium(III) phosphate

Agent Name
Chromium(III) phosphate
CAS Number
7789-04-0
Formula
Cr.H3-O4-P
Major Category
Metals
Chromium(III) phosphate formula graphical representation
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

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; [ACGIH]
NFPA
must be preheated

Adverse Effects

IARC Carcinogen
Not classifiable
ACGIH Carcinogen
Not Classifiable

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: