Aqueous acid-base titrations

Table8.23 Indicators for Aqueous Acid-Base Titrations 8.116...

Table 11.27 Primary Standards for Aqueous Acid-Base Titrations Table 11.28 Titrimetric (Volumetric) Factors...

Table 8.4 Indicators for Aqueous Acid—Base Titrations. 8.72...

Nonaqueous versus Aqueous Acid-Base Titration Potassium Acid Phthlate... 

Sodium sulfate is the main inorganic salt expected in sulfonated surfactants. It may also be deliberately added to formulations as a filler or processing aid. Classical methods for sulfate determination are gravimetric or based on BaCl2 titration. It has been found that non-aqueous acid-base titration permits sulfate to be differentiated from sulfonates (18). Sulfate ion has been titrated with lead chloride solution using dithizone as indicator and acetone/water as solvent (19). Alternatively, it may be titrated with barium perchlorate with Sulfonazo III as indicator (9). 

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