Difference between revisions of "Lead glaze"

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[[File:20.790-SC60956.jpg|thumb|Lead-glazed porcelain<br>MFA# 20.790]]
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== Description ==
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[[File:52.1546-CR5861-d1.jpg|thumb|Marblelized stoneware<br>MFA# 52.1546]]
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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 ([[Naples_yellow|Naples yellow]]), [[lead_carbonate, basic|basic lead carbonate]], [[lead_chromate|lead chromate]], [[lead_oxide|lead oxide]], [[lead_silicate|lead silicate]], and [[lead_sulfate|lead sulfate]].
  
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[[File:60.8-SC39357.jpg|thumb|Lead-glazed earthenware<br>MFA# 60.8]]
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== Synonyms and Related Terms ==
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glaure au plomb (Fr.); loodglazuur (Ned.); vidrado de chumbo (Port.)
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== Risks ==
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* Toxic by inhalation or ingestion.
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* Skin contact may cause irritation or ulcers.
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* Carcinogen, teratogen, suspected mutagen.
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== Resources and Citations ==
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* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971  Comment: p. 445
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* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993
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* Henry Hodges, ''Artifacts: An Introduction to Early Materials and Technology'', Ronald P. Frye, Kingston, Canada, 1988
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* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997
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* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
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[[Category:Materials database]]

Latest revision as of 08:11, 7 October 2022

Lead-glazed porcelain
MFA# 20.790

Description

Marblelized stoneware
MFA# 52.1546

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.

Lead-glazed earthenware
MFA# 60.8

Synonyms and Related Terms

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

Risks

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

Resources and Citations

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