Lead sulfate, basic

Description

A white pigment that is made the the roasting of Galena (lead sulfide) in an oxygen rich atmosphere. Basic lead sulfate is used as a paint pigment, typically in combination with Zinc oxide. It is also used in ceramic glazes.

Synonyms and Related Terms

sublimed white lead; basic lead sulfate; basic lead sulphate (Br.); sulfato básico de plomo (Esp.); sulfato básico de chumbo (Port.); Bartlet white lead; basic sulphate white lead; Lewis white lead; white lead sulfate; lanarkite

Risks

• Toxic by inhalation or ingestion.
• Noncombustible.
• Skin contact may cause irritation or ulcers.
• Carcinogen, teratogen, suspected mutagen.
• ThermoFisher: SDS

Physical and Chemical Properties

Slightly soluble in hot water and acids.

Composition	PbSO4-PbO
Melting Point	977 C
Density	6.92 g/ml

Resources and Citations

• M-C. Corbeil, P.J. Sirois, E.A. Moffatt, "The use of a white pigment patented by Freeman by Tom Thomson and the Group of Seven" ICOM preprints, Lyons, 1999, p369.

• Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942

• G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 444

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

• Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985