Reference number
ISO 2598-2:1992
© ISO 2026
International Standard
ISO 2598-2:1992
Iron ores — Determination of silicon content — Part 2: Reduced molybdosilicate spectrophotometric method
Edition 1
1992-12

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Published (Edition 1, 1992)
This publication was last reviewed and confirmed in 2025. Therefore this version remains current.

ISO 2598-2:1992

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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.

General information

  • Status
     : Published
    Publication date
     : 1992-12
    Stage
    : International Standard to be revised [90.92]
  • Edition
     : 1
    Number of pages
     : 8
  • Technical Committee :
    ISO/TC 102/SC 2
    ICS :
    73.060.10 
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Next version under development

Draft
International Standard
ISO/DIS 2598-2
Iron ores — Determination of silicon content — Part 2: Reduced molybdosilicate spectrophotometric method
Reference number
ISO/DIS 2598-2
Edition 1
© ISO 2026
Draft International Standard

ISO/DIS 2598-2

Iron ores — Determination of silicon content

Part 2: Reduced molybdosilicate spectrophotometric method

ISO/DIS 2598-2

Language
Format
CHF 67
* Shipping costs not included
Convert Swiss francs (CHF) to your currency

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