Agent Name

Chromium potassium sulfate dodecahydrate

CAS Number

7788-99-0

Formula

O8-S2.Cr.K.12H2-O

Major Category

Metals

Synonyms

Chrome alum; Chrome alum (dodecahydrate); Potassium chromium alum dodecahydrate; Sulfuric acid, chromium(3+)potassium salt(2:1:1), dodecahydrate; Chromium(III) potassium sulfate (1:1:2), dodecahydrate; [ChemIDplus]

Category

Chromium Compounds, Inorganic

Description

Violet-red to black crystals; Solutions turn green when heated; [CHEMINFO]

Sources/Uses

Used in dyeing (mordant), tanning, printing calico, developing photographs, and producing glue, gum, and waterproof fabrics; [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] See "Chromium."

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

TLV (ACGIH)

0.5 mg/m3, as Cr

PEL (OSHA)

0.5 mg/m3, as Cr

Adverse Effects
IARC Carcinogen

Not Classifiable

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: