Difference between revisions of "Lead glaze"
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| − | 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 ([http://cameo.mfa.org/materials/fullrecord.asp?name= | + | 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 ([http://cameo.mfa.org/materials/fullrecord.asp?name=Naples_yellow Naples yellow]), [http://cameo.mfa.org/materials/fullrecord.asp?name=lead_carbonate, basic lead carbonate], [http://cameo.mfa.org/materials/fullrecord.asp?name=lead_chromate lead chromate], [http://cameo.mfa.org/materials/fullrecord.asp?name=lead_oxide lead oxide], [http://cameo.mfa.org/materials/fullrecord.asp?name=lead_silicate lead silicate], and [http://cameo.mfa.org/materials/fullrecord.asp?name=lead_sulfate lead sulfate]. |
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Revision as of 13:47, 9 May 2016
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 (Naples yellow), basic lead carbonate, lead chromate, lead oxide, lead silicate, and lead sulfate.
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.
Additional Images
Sources Checked for Data in Record
- 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
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000