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  4. Standard "ISO 456:1973"
Standard ISO 456:1973 1.3.1973 preview

ISO 456:1973

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

Automatically translated name:

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



STANDARD published on 1.3.1973


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The information about the standard:

Designation standards: ISO 456:1973
Publication date standards: 1.3.1973
SKU: NS-432312
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: International technical standard
Category: Technical standards ISO

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The category - similar standards:

Surface active agents

Annotation of standard text ISO 456:1973 :

Description / Abstract: 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.

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