Lead sesquisilicate

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Description

A type of Lead silicate used by potters as a lead frit glaze. Lead sesquisilicate is toxic and may form lead fumes during firing.

Synonyms and Related Terms

lead frit

Composition 2PbO - 3SiO2
Melting Point 690-850

Hazards and Safety

Highly toxic by ingestion and inhalation.

Human carcinogen, teratogen and suspected mutagen.

Authority

  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992

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