Chromium(III) sulfate hydrate
Agent Name
Chromium(III) sulfate hydrate
CAS Number
15244-38-9
Formula
Cr.3/2H2-O4-S.xH2-O
Major Category
Metals
Synonyms
Chromium sulfate hydrate; [ChemIDplus]
Category
Chromium Compounds, Inorganic
Description
Technical material: Dark green solid; Readily soluble in water; [Merck Index] Violet odorless crystals; Soluble in water; [Alfa Aesar MSDS]
Sources/Uses
Used in dyeing textiles (mordant), leather tanning, and chrome plating; Also used to make catalysts, chromium trioxide (Cr-O3), chromium alloys, green varnishes, paints, inks, and glazes for porcelain; [Merck Index]
Comments
Hydrates exist in green and violet forms, with degrees of hydration up to 18H2-O; [Merck Index] A skin and eye irritant; May cause skin sensitization; Harmful by ingestion and inhalation; [Alfa Aesar MSDS] See "Chromium." See "Chromium(III) sulfate."
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]
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:
Activities
Activities with risk of exposure: