ISO 2522:1974
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ISO 2522:1974
7458

Abstract 

The method specified determines only those phenols capable of reacting at the 2nd, 4th and 6th position (-OH = 1). The procedure consists in extraction of free phenols from a test portion with sodium hydroxide solution. Bromination of these phenols with potassium bromide-bromate solution in an acid medium and determination of the excess bromine after reaction with potassium iodide by titration with standard volumetric sodium thiosulphate solution.


General information 

  •  :  Withdrawn
     : 1974-04
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.080.70 Esters

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