ISO 1389-9:1977
w
ISO 1389-9:1977
5963

Abstract 

This method is not specific for maleic anhydride. The polarographic method specified in part 7 should be used. The principle is based on the oxidation of unsaturated organic acids and anhydrides in a test portion with an excess of cold standard volumetric potassium permanganate solution in the presence of sulphuric acid, followed by iodometric determination of the potassium permanganate remaining. - ISO 1389, Parts 1 to 11, replace ISO Recommendation R 1389-1970.


General information 

  •  :  Withdrawn
     : 1977-02
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.080.50 Anhydrides

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