Anionic surfactants, such as those listed in 1.1, commonly are used in detergent formulations. Their acceptability for use depends on their purity. Sulfate content, as measured by this test method, can be used to estimate the purity of an anionic surfactant under test.

1. Scope

1.1 This test method describes a potentiometric titration procedure for determining the inorganic sulfate content of surfactants. It is intended for the analysis of -olefin sulfonates, alkane sulfonates, alcohol sulfates, alcohol ether sulfates, alkylbenzenesulfonates, and the like.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1193 Specification for Reagent Water

Keywords

ICS Code

ICS Number Code 71.040.40 (Chemical analysis)

Citing ASTM Standards

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