International Standard
ISO 2598-2:1992
Iron ores — Determination of silicon content — Part 2: Reduced molybdosilicate spectrophotometric method
Reference number
ISO 2598-2:1992
Edition 1
1992-12
© ISO 2024
International Standard
Read sample
Published (Edition 1, 1992)
This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

ISO 2598-2:1992

Format
Language
CHF 63
Convert Swiss francs (CHF) to your currency

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 confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 8
  • Technical Committee :
    ISO/TC 102/SC 2
    ICS :
    73.060.10 
  • RSS updates

Life cycle

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

  2. Store
  3. Standards catalogue
  4. ICS
  5. 73
  6. 73.060
  7. 73.060.10
  8. ISO 2598-2:1992