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| Sol·vay proc·ess [ sól vay pr səss ] |
noun |
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| Definition: |
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industrial process for producing sodium carbonate: an industrial process for producing sodium carbonate or washing soda from common salt. A solution of salt is saturated with ammonia and carbon dioxide is passed through it, which causes sodium hydrogen carbonate to precipitate. It is then heated to obtain sodium carbonate.
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| [Late 19th century. After Ernest Solvay (1838-1922), Belgian chemist] |
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