Chromium potassium sulfate dodecahydrate

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] Soluble in water; [Alfa Aesar]

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."

Biomedical References

0.003 mg/m3, as Cr(III), inhalable particulate matter

0.5 mg/m3

Explanatory Notes

Soluble Cr(III) compounds are assigned RSEN and DSEN; [ACGIH]

Yes

Yes

Not classifiable

Not Classifiable

Diseases

Occupational diseases associated with exposure to this agent:

• Asthma, occupational
• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Leather Tanning and Processing
• Photographic Processing
• Textiles (Printing, Dyeing, or Finishing)