Using sodium hydrosulphide or sodium thiosulfate as materials,the production cost of TGA is low.While,a high content of TGA can be obtained with thiourea as reactant.

本文对巯基乙酸的合成工艺进行了比较,为化钠法代酸钠法生产成本低,适宜于选矿用巯基乙酸的生产,而脲法可得到较高浓度的巯基乙酸。