white lead

white lead
   White lead, a whitish corrosion product of lead, was formerly used to provide opacity in paints, especially in house paints. The white pigment in a colored paint is often called the hiding pigment. In addition to preventing the sun's damaging rays from affecting the surface beneath the paint, the white lead also helped prevent the growth of mold and mildew. Not until early in the 20th century was a successful substitute, titanium dioxide (TiO2), patented, and even then, it did not come into prevalent use by itself until the middle of the 20th century. Earlier in the century, titanium oxide and white lead were often mixed. Also see zinc white.

Glossary of Art Terms. 2014.

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  • White lead — Lead Lead (l[e^]d), n. [OE. led, leed, lead, AS. le[ a]d; akin to D. lood, MHG. l[=o]t, G. loth plummet, sounding lead, small weight, Sw. & Dan. lod. [root]123.] 1. (Chem.) One of the elements, a heavy, pliable, inelastic metal, having a bright,… …   The Collaborative International Dictionary of English

  • White lead — White White (hw[imac]t), a. [Compar. {Whiter} (hw[imac]t [ e]r); superl. {Whitest}.] [OE. whit, AS. hw[imac]t; akin to OFries. and OS. hw[=i]t, D. wit, G. weiss, OHG. w[=i]z, hw[=i]z, Icel. hv[=i]tr, Sw. hvit, Dan. hvid, Goth. hweits, Lith.… …   The Collaborative International Dictionary of English

  • white lead — n. 1. a poisonous, heavy, white powder, basic lead carbonate, 2PbCO3·Pb(OH) 2, used in paints, pottery glazes, etc. 2. any of several white pigments containing lead, as lead sulfate …   English World dictionary

  • white lead — white′ lead′ [[t]lɛd[/t]] n. 1) chem. a white heavy powder of basic lead carbonate, 2PbCO3∙Pb(OH)2, used as a pigment, in putty, and in ointments for burns 2) chem. putty made from white lead in oil • Etymology: 1400–50 …   From formal English to slang

  • white lead — n any of several white lead containing pigments esp a heavy poisonous basic carbonate of lead of variable composition used esp. formerly in paints …   Medical dictionary

  • White lead — Chembox new ImageFile = ImageSize = IUPACName = OtherNames = basic lead carbonate Section1 = Chembox Identifiers CASNo = 1319 46 6 PubChem = SMILES = Section2 = Chembox Properties Formula = (PbCO3)2·Pb(OH)2 MolarMass = 775.633 g/mol Appearance =… …   Wikipedia

  • white lead — noun Date: 15th century any of several white lead containing pigments; especially a heavy poisonous basic carbonate of lead marketed as a powder or as a paste in linseed oil and used especially formerly in paints …   New Collegiate Dictionary

  • white lead — lead carbonate …   Eponyms, nicknames, and geographical games

  • White Lead (Painting) Convention, 1921 — Infobox ILO convention code= C13 name= White Lead (Painting) Convention, 1921 adopt= November 19, 1921 force= August 31, 1923 classify= Toxic Substances and Agents subject= Occupational Safety and Health prev= Workmen s Compensation (Agriculture) …   Wikipedia

  • white lead — /led/ 1. a white, heavy powder, basic lead carbonate, 2PbCO3·Pb(OH)2, used as a pigment, in putty, and in medicinal ointments for burns. 2. the putty made from this substance in oil. [1400 50; late ME] * * *       any of several white pigments… …   Universalium

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