BS 7020-4.2:1990

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Analysis of iron ores. Method for the determination of total iron content – Titanium (III) chloride reduction methods

Published By	Publication Date	Number of Pages
BSI	1990	16

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Categories: 73.060.10 - Iron ores, BSI

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Description

This International Standard specifies two titrimetric methods, free from mercury pollution, for the determination of total iron content in iron ores, using potassium dichromate as titrant after reduction of the iron(III) by tin(II) chloride and titanium(III) chloride. The excess reductant is then oxidized by either dilute potassium dichromate (method 1) or perchloric acid (method 2).

Both methods are applicable to a concentration range of 30 % (m/m) to 72 % (m/m) of iron in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

Two methods specified using potassium dichromate as titrant after reduction of the iron (III) by tin (II) chloride and titanium (III) chloride. Excess reductant oxidized by either dilute potassium dichromate or perchloric acid.

Additional information

Status	Definitive
Pages	16
Publication Date	1990-10-31
ISBN	0 580 19020 X
Standard Number	BS 7020-4.2:1990, ISO 9507:1990
Title	Analysis of iron ores. Method for the determination of total iron content – Titanium (III) chloride reduction methods
Identical National Standard Of	ISO 9507:1990
Descriptors	Specimen preparation, Volumetric analysis, Chemical analysis and testing, Reduction methods, Statistical methods of analysis, Testing conditions, Determination of content, Reproducibility, Iron ores, Minerals, Concentration (chemical), Metalliferous minerals, Iron
Publisher	BSI
Committee	W/-
ICS Codes	73.060.10 - Iron ores

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BS 7020-4.2:1990

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