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

Name: ISO 2993:1974, Ammonium sulphate for industrial use -- Determination of free acidity -- Titrimetric method
Author: ISO TC 47
ISBN: 978B000Y2SU79

Author ISO TC 47

Publisher Multiple. Distributed through American National Standards Institute (ANSI)

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Book Details

Author(s)ISO TC 47

PublisherMultiple. Distributed through American National Standards Institute (ANSI)

ISBN / ASINB000Y2SU74

ISBN-13978B000Y2SU79

AvailabilityUsually ships in 24 hours

Sales Rank99,999,999

MarketplaceUnited States 🇺🇸

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. This title may contain less than 24 pages of technical content.