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ISO 2993:1974

ISO 2993:1974 Ammonium sulphate for industrial use – Determination of free acidity – Titrimetric method

CDN $82.00

SKU: 2f7f77400d8a Category:

Description

Applicable to products having a free acidity, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Dissolution of a test portion in Water and titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The indicator must have a colour change in the pH range between 5.2 and 5.6. Has also been approved by the IUPAC.

Edition

1

Published Date

1974-04-01

Status

PUBLISHED

Pages

2

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

Applicable to products having a free acidity, expressed as H2 SO4 , equal to or more than 0.01 % (m/m). Dissolution of a test portion in Water and titration with standard volumetric sodium hydroxide solution in the presence of an indicator. The indicator must have a colour change in the pH range between 5.2 and 5.6. Has also been approved by the IUPAC.

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