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lithopone

[lith-uh-pohn] /ˈlɪθ əˌpoʊn/
noun
1.
a white pigment consisting of zinc sulfide, barium sulfate, and some zinc oxide, used as a pigment and filler in the manufacture of paints, inks, leather, paper, linoleum, and face powders.
Origin
1880-1885
1880-85; litho- + Greek pónos a work, structure
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lithopone
  • lithopone, a mixture of zinc sulfide and barium sulfate, is an important pigment.
  • lithopone and other pigments and preparations based on zinc sulfide.
  • Finally, three workers from a lithopone packing house were selected.
British Dictionary definitions for lithopone

lithopone

/ˈlɪθəˌpəʊn/
noun
1.
a white pigment consisting of a mixture of zinc sulphide, zinc oxide, and barium sulphate
Word Origin
C20: from litho- + Greek ponos work
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for lithopone

brilliant white pigment used in paints, inks, leather, paper, linoleum, and face powder. Lithopone was developed in the 1870s as a substitute or supplement for lead carbonate (white lead), to overcome its drawbacks of toxicity, poor weathering, and darkening in atmospheres that contain sulfur compounds. Lithopone is an insoluble mixture of barium sulfate and zinc sulfide that precipitates upon mixing solutions of barium sulfide and zinc sulfate. The precipitate is recovered by filtration, then calcined (roasted) at temperatures above 600 C (1,112 F). Although lithopone has been replaced in many applications by titanium dioxide, introduced after World War I, it is still widely used in a number of products, such as water paints.

Learn more about lithopone with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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