Bismuth chromate

Description

An orange reddish amorphous powder. Bismuth chromate has been mentioned as having been used as a pigment in the early 19th century. However, it was expensive and offered no clear advantages over the other available pigments at the time.

Synonyms and Related Terms

basic dichromate; cromato de bismuto (Esp.); chromate de bismuth (Fr.); cromato di bismuto (It.); cromato de bismuto (Port.)

Physical and Chemical Properties

• Soluble in acids and alkalis.
• Insoluble in water and ethanol.
• Composition = Bi2O3-2CrO3

Risks

• Human carcinogen.
• Skin contact may cause allergies.
• Acute ingestion may cause fatal chromium poisoning.
• Chronic inhalation may cause lung cancer and respiratory irritation.

Resources and Citations

H. Kuhn, M.Curran, "Chrome Yellow and Other Chromate Pigments", Artists Pigments, Volume 1, R. Feller (ed.), Cambridge University Press: Cambridge, 1986.

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 104

• Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993