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SRPS ISO 456:1992

Surface active agents — Analysis of soaps — Determination of free caustic alkali

Jun 10, 1992
Jun 10, 1992

General information

90.93     Aug 6, 2012

ISS

H091

International Standard

71.100.40  

Serbian  

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Scope

The determination may be carried out in two different ways by the ethanol method or the barium chloride method. In the first case the soap is dissolved in neutralized ethanol, and the free caustic alkali is titrated with an ewthanol solution of hydrochloric acid. The second way includes precipitating of soap and carbonate with barium chloride and determining of the residual alkalinity of the solution, representing the alkalinity of the free potassium hydroxide.

Life cycle

NOW

PUBLISHED
SRPS ISO 456:1992
90.93 Standard confirmed
Aug 6, 2012

Related project

Adopted from ISO 456:1973