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ISO 2598-2:1992

Iron ores -- Determination of silicon content -- Part 2: Reduced molybdosilicate spectrophotometric method
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ISO 2598-2:1992

Iron ores -- Determination of silicon content -- Part 2: Reduced molybdosilicate spectrophotometric method

PUBLISH DATE 1992
ISO 2598-2:1992

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.

SDO ISO: International Organization for Standardization
Document Number ISO 2598
Publication Date Dec. 15, 1992
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 102/SC 2
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