非水电位滴定法测定烷基磷酸酯钾盐的单、双酯

Determination of Mono-and Di-ester of Potassium Alkyl-phosphates with Nonaqueous Potentiometric Titration

应用非水电位滴定法测定烷基磷酸酯钾盐中的单、双酯,无需分离.测定的变异系数分别为3.0%和5.3%(n=12).本法有效消除了非离子表面活性剂和无机磷酸盐的干扰.适用于化纤油剂的质量检验和上油槽中油剂浓度的测定.

Mono-and di-ester of potassium alkyl phosphates are determined respectively with nonaqueous potentiometric titration without separation. The coefficients of variation are 3. 0% and 5. 3% (n = 12) respectively. The interferences of nonionic surfactants and inorganic phosphats are effectively eliminated. The method can be applied in the quality examination of finishing and the determination of the concentration of finishing solution in bath.