thiourea

This thesis mainly introduced that ureas and semicarbazides were synthesized by oxidation of corresponding thioureas and thiosemicarbazides using 30% peroxide as oxidant.

本文主要以30%浓度的双氧水作为氧化剂氧化脲、氨基脲来制备相应的脲和氨基脲化合物。

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.

本文对巯基乙的合成工艺进行比较研究,认为氢化钠法和钠法生产成本低,适宜于选矿用巯基乙的生产,而脲法可得到较高浓度的巯基乙。