Chromium(III) fluoride tetrahydrate
Agent Name
Chromium(III) fluoride tetrahydrate
CAS Number
123333-98-2; 68886-78-2
Formula
Cr-F3.4H2-O
Major Category
Metals
Synonyms
Chromic fluoride tetrahydrate; [MSDSonline]
Category
Chromium Compounds, Inorganic
Description
Green crystals, slightly soluble in water; [MSDSonline]
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] Corrosive to skin, eyes, and respiratory tract; Can cause fluoride poisoning; [MSDSonline] See "Chromium."
Biomedical References
Exposure Assessment
BEI
Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)
TLV (ACGIH)
0.003 mg/m3, as Cr(III), inhalable particulate matter (2.5 mg/m3, as F)
PEL (OSHA)
0.5 mg/m3, as Cr (2.5 mg/m3, as F)
MAK
1 mg/m3, as F, inhalable fraction
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
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.