Chromium(III) bromide
Agent Name
Chromium(III) bromide
CAS Number
10031-25-1
Formula
Br3-Cr
Major Category
Metals
Synonyms
Chromic bromide; Chromium tribromide; [ChemIDplus]
Category
Chromium Compounds, Inorganic
Description
Black crystals; [Merck Index]
Sources/Uses
Used as polymerization catalysts for olefins; [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] A skin, eye, and respiratory tract irritant; "Stable under recommended storage conditions." [MSDSonline] See "Bromine." 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; "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]
NFPA
must be preheated
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.