ISO 2598-2:1992
p
ISO 2598-2:1992
10666

Abstract

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The method is based on decomposition of the test portion by fusion with sodium tetraborate and treatment with dilute nitric acid, addition of ammonium molybdate to convert silicate into a molybdatosilicate complex, reduction to molybdenum blue with ascorbic acid, and spectrophotometric measurement of the absorbance of the molybdenum blue complex at a wavelength of approximately 600 nm. Applies to silicon contents between 0,1 % and 5,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products, especially for ores containing fluorine.


General information 

  •  : Published
     : 1992-12
  •  : 1
     : 8
  •  : ISO/TC 102/SC 2 Chemical analysis
  •  :
    73.060.10 Iron ores

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