• ASTM D3049-89(2009)
Provide PDF Format

Learn More

ASTM D3049-89(2009)

  • Standard Test Method for Synthetic Anionic Ingredient by Cationic Titration
  • standard by ASTM International, 10/01/2009
  • Publisher: ASTM

$26.00$52.80


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.

Related Products

ASTM D3364-99

ASTM D3364-99

Standard Test Method for Flow Rates for Poly(Vinyl Chloride) with Molecular Structural Implications..

$23.00 $46.80

ASTM F1670-07

ASTM F1670-07

Standard Test Method for Resistance of Materials Used in Protective Clothing to Penetration by Synth..

$26.00 $52.80

ASTM D6152/D6152M-12

ASTM D6152/D6152M-12

Standard Specification for SEBS-Modified Mopping Asphalt Used in Roofing..

$20.00 $39.00

ASTM B684-97(2012)

ASTM B684-97(2012)

Standard Specification for Platinum-Iridium Electrical Contact Materials..

$23.00 $46.80