lead glaze

   A vitreous coating applied for practical and ornamental purposes to earthenware, consisting of powder of lead oxide with silacious sand, salt and potash which fuses when fired. It is transparent but color can be added. Because of lead's toxicity, lead glazes must never be used on surface which might ever contact food, drink, or a mouth; and containers of lead glazes must be labeled with such warnings. All glazes should be labeled to reflect their lead and cadmium content. The following chart describes six different types of ceramic glazes, each carrying levels of concerns about lead content, in order to help you to determine which are safe to use on dinnerware — vessels for food or drink.

Glossary of Art Terms. 2014.

Look at other dictionaries:

  • lead glaze — /led/, Ceram. a siliceous glaze containing lead oxide as a flux. [1835 45] * * * …   Universalium

  • lead glaze — /led/, Ceram. a siliceous glaze containing lead oxide as a flux. [1835 45] …   Useful english dictionary

  • Lead glass — Swarovski flacon. Lead glass is a variety of glass in which lead replaces the calcium content of a typical potash glass.[1] Lead glass contains typically 18–40 weight% lead(II) oxide (PbO), while modern lead …   Wikipedia

  • Lead — (pronEng|ˈlɛd) is a main group element with a symbol Pb ( la. plumbum). Lead has the atomic number 82. Lead is a soft, malleable poor metal, also considered to be one of the heavy metals. Lead has a bluish white color when freshly cut, but… …   Wikipedia

  • Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …   Wikipedia

  • lead — lead1 [lēd] vt. led, leading [ME leden < OE lædan, caus. of lithan, to travel, go, akin to Ger leiten: for IE base see LOAD] 1. a) to show the way to, or direct the course of, by going before or along with; conduct; guide b) to show (the way)… …   English World dictionary

  • lead processing — Introduction       preparation of the ore for use in various products.       Lead (Pb) is one of the oldest metals known, being one of seven metals used in the ancient world (the others are gold, silver, copper, iron, tin, and mercury). Its low… …   Universalium

  • Lead(II) oxide — Chembox new ImageFile = ImageSize = 100px IUPACName = Lead(II) oxide OtherNames = Plumbous oxide, lead monoxide, massicot, litharge Section1 = Chembox Identifiers CASNo = 1317 36 8 PubChem = SMILES = Section2 = Chembox Properties Formula = PbO… …   Wikipedia

  • glaze — i. An aircraft brake malfunction in which a hard, glasslike coating forms on the brake disc surface, causing the brakes to chatter, squeal, and be less effective. ii. The sheet or thin coating of ice that forms when rain falls on surfaces with… …   Aviation dictionary

  • lead glazing — A faulty spark plug condition caused by molten lead salt deposits that solidify into a yellow, brown, or green glaze …   Dictionary of automotive terms

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