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xanthate

[zan-theyt] /ˈzæn θeɪt/
noun, Chemistry
1.
a salt or ester of xanthic acid.
Origin
1825-1835
1825-35; xanth(ic acid) + -ate2
Related forms
xanthation, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for xanthate
  • Grafting starch xanthate with vinyl monomers and hydrogen peroxide in foam rubber production.
  • The xanthate is dissolved by the addition of dilute aqueous caustic to form viscose.
British Dictionary definitions for xanthate

xanthate

/ˈzænθeɪt/
noun
1.
any salt or ester of xanthic acid
Derived Forms
xanthation, noun
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 xanthate

any of a class of organic salts formed by treatment of an alcohol with carbon disulfide in the presence of an alkali. The term is derived from the Greek word xanthos, for "yellow," in reference to the compound potassium ethyl xanthate (C2H5OCS2K), which gives a yellow precipitate when combined with copper sulfate. The most important group of xanthates are the sodium salts produced from cellulose; these materials are processed to form the synthetic fibre rayon or the transparent film cellophane, then reconverted to cellulose. The xanthates of some low-molecular-weight alcohols are used as flotation agents for the concentration of ores.

Learn more about xanthate with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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18
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