Scientific Review of Cobalt Sulfate
Status: Listed in the Report on Carcinogens (RoC)
Primary Uses or Exposures: Cobalt sulfate is used in the electroplating and electrochemical industries; as a drier for lithographic inks, varnishes, paints, and linoleum; in storage batteries; and as a coloring agent in ceramics, enamels, glazes, and porcelain. In addition, cobalt sulfate has been used in animal feeds as a mineral supplement and has been used on pastures where the forage is cobalt deficient to provide enough cobalt for ruminants (e.g., cattle, sheep, or goats) to produce vitamin B 12. Past uses include addition to beers to improve the stability of the foam and to improve blood values (hematocrit, hemoglobin, and erythrocyte levels) in people with forms of anemia not responsive to other treatments.
- Appendix A: IARC (1991). Monographs on the Evaluation of Carcinogenic Risks to Humans. Chlorinated Drinking-Water: Chlorination By-products; Some Other Halogenated Compounds: Cobalt and Cobalt Compounds. V 52. pp 363 - 472.
- Appendix B: NTP (1998). Toxicology and Carcinogenesis Studies of Cobalt Sulfate Heptahydrate in F344/N Rats and B6C3F1 Mice (Inhalation Studies). TR No. 471. pp 5 - 62.
Meetings and Review Group Minutes
- Review Group 1 Review Summary Document for Cobalt Sulfate (September 28, 2001)
- Review Group 2 Review Summary Document for Cobalt Sulfate (May 1, 2002)
- Cobalt Sulfate Commentary (Review Group 2)
- NTP Board of Scientific Counselors RoC Subcommittee Meeting (November 19–20, 2002)
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