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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
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for litho-pone

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
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Encyclopedia Article for litho-pone

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.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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8
8
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