After partial esterification of alkylpolyoxyethylene ether with citric acid, the reaction mixture was neutralized by sodium hydroxide to produce the salts of the partial esterification products.

• 将脂肪醇聚氧乙烯醚和柠檬酸进行部分酯化反应，生成脂肪醇聚氧乙烯柠檬酸酯，再中和成钠盐。