Thioglycolic acid(TGA) was synthesized from thioglycolic acid and sodium hydrosulfide under common pressure.

研究了以硫氢化和氯乙原料常压合成巯乙。

Results indicate that both of barium thioglycolate and barium-natrium thioglycolate can increase the thermal stability of PVC system, and the thermal stability of barium thioglycolate is better.

巯乙和巯乙-都能提高PVC热稳定性,但巯乙稳定性要好于巯乙-。

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.

本文对巯乙合成工艺进行了比较研究,认硫氢化法和硫代硫法生产成本低,适宜于选矿用巯乙生产,而硫脲法可得到较高浓度巯乙。