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9 July, 21:27

Raw material solvay process

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  1. 9 July, 21:45
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    The Solvay process is an industrial method which was used to produce sodium carbonate and sodium hydrogen carbonate. This process uses salt (sodium chloride) to provide the sodium ions and limestone (calcium carbonate) for the carbonate ions in the sodium carbonate. The overall reaction is shown below:

    CaCO3 (s) + 2 NaCl (aq) à Na2CO3 (s) + CaCl2 (aq)

    However, salt and limestone do not react together, so this reaction requires burning of coke. Also, ammonia is needed in the process. Thus, the raw materials in the Solvay process are the following:

    Sodium chloride (NaCl) or commonly known as purified brine

    Calcium carbonate (CaCO3) or commonly known as limestone

    Coke

    Ammonia

    Moreover, this process manufactures different products:

    Light sodium carbonate (light ash)

    Granular sodium carbonate (heavy ash)

    Refined sodium hydrogencarbonate

    Calcium chloride - major by-product
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