ISO 745:1976
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ISO 745:1976
4999

Abstract 

Describes a method of analysis of anhydrous sodium carbonate and sodium carbonate decahydrate. The principle of analysis consists in heating of thin layers of a test portion to constant mass at 250 °C. The residue constitutes the non-volatile matter at 250 °C. The loss of mass represents water in its various forms plus half the carbon dioxide content of the hydrogen carbonate present. Replaces ISO Recommendation R 745-1968.


General information 

  •  :  Withdrawn
     : 1976-02
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.060.50 Salts

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