ASTM D 3049 : 1989 : R2009

Name: ASTM D 3049 : 1989 : R2009
Brand: ASTM
Price: 64.04 GBP

Superseded

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Standard Test Method for Synthetic Anionic Ingredient by Cationic Titration

Available format(s)

Hardcopy , PDF

Superseded date

30-09-2020

Language(s)

English

Published date

01-10-2009

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 15.04, 2016 Defines the determination of the amount of synthetic anionic ingredient in a surfactant by direct titration with a standardized cationic reagent.

1.1 This test method covers the determination of the amount of synthetic anionic ingredient in a surfactant by direct titration with a standardized cationic reagent. The test method is a simple and convenient means for the quantitative estimation of the anionic material. The end point is detected by the transfer of a colored complex from an organic solvent phase to an aqueous phase. The colored complex is formed by the addition of a solution of dye to a solution of the anionic surfactant. This complex is soluble in the organic-solvent phase and insoluble in the aqueous phase. When this solution is titrated with a standardized solution of a cationic reagent, the dye is displaced from the colored complex and, being water-soluble, migrates to the aqueous phase. Therefore, a cationic titrating solution that has been standardized against a characterized anionic agent can be used to analyze for other anionics of known molecular mass.

1.2 This test method is applicable to alkylaryl sulfonates, alkyl sulfonates, alkyl sulfates and hydroxy-sulfates, alkylphenol- and fatty alcohol ethoxy-sulfates and dialkylsulfosuccinates. It applies to active materials containing one hydrophilic group per molecule.

Committee	D 12
DocumentType	Test Method
Pages	5
ProductNote	Reconfirmed 2009 Reconfirmed 2006 Reconfirmed EDT 1
PublisherName	American Society for Testing and Materials
Status	Superseded
SupersededBy	ASTM D 3049 : 1989 : R2016
Supersedes	ASTM D 3049 : 1989 : R2003