Lead glaze

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Contents

Description

A simple, low firing glaze used on soft paste ceramics. Lead glazes may be sprinkled or thinly painted on a clay body. Lead glazes are used on clay that can be fired below its volatilization temperature of about 1150C. Lead glazes produce a lustrous, opaque surface, but they are no longer in common use because of the potential for lead poisoning. Examples of lead salts used as glazes are: lead antimonate (yellow Naples yellow), carbonate, basic lead carbonate, chromate lead chromate, oxide lead oxide, silicate lead silicate, and sulfate lead sulfate.

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Synonyms and Related Terms

glaure au plomb (Fr.); loodglazuur (Ned.); vidrado de chumbo (Port.)

Hazards and Safety

Toxic by inhalation or ingestionSkin contact may cause irritation or ulcers.Carcinogen, teratogen, suspected mutagen.

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Authority

  • G.S.Brady, G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 445
  • Richard S. Lewis, Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Henry Hodges, Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988
  • Random House, Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997

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