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.<\/p>\n
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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | Scope Referenced Documents Summary of Test Method Significance and Use <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Interferences Reagents Safety Precaution Primary Standard <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Preparation of the Mixed Indicator Solution Preparation of 0.004 M Hyamine 1622 Solution Standardization of Hyamine 1622 Solution <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | General Procedure for Anionic-Active Material Report Precision and Bias Keywords TABLE 1 <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" D3049-89(2009) Standard Test Method for Synthetic Anionic Ingredient by Cationic Titration<\/b><\/p>\n |