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Solvay process

a process for manufacturing sodium carbonate whereby a concentrated solution of sodium chloride is saturated with ammonia, carbon dioxide is passed through it, and the product is calcined.
Origin of Solvay process
First recorded in 1885-90; named after E. Solvay Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for Solvay process
Historical Examples
  • This enters into double decomposition with the salt, as shown in the first equation under the Solvay process.

British Dictionary definitions for Solvay process

Solvay process

an industrial process for manufacturing sodium carbonate. Carbon dioxide is passed into a solution of sodium chloride saturated with ammonia. Sodium bicarbonate is precipitated and heated to form the carbonate
Word Origin
C19: named after Ernest Solvay (1838–1922), Belgian chemist who invented a process using salt, limestone, and ammonia
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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Solvay process in Science
Solvay process
  (sŏl'vā, sôl-vā')   
A process used to produce large quantities of sodium carbonate. In the Solvay process, salt (sodium chloride) is treated with ammonia and then carbon dioxide, producing sodium bicarbonate and ammonium chloride. The ammonium chloride is usually combined with lime to produce ammonia (recycled for reuse) and calcium chloride.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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