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ISO 2598-2:1992
Iron ores — Determination of silicon content — Part 2: Reduced molybdosilicate spectrophotometric method
Automatically translated name:
Iron ores -- Determination of silicon content -- Part 2: Reduced molybdosilicate spectrophotometric method
STANDARD published on 10.12.1992
The information about the standard:
Designation standards: ISO 2598-2:1992
Publication date standards: 10.12.1992
SKU: NS-430152
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 2598-2:1992 :
Description / Abstract: 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.
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