thioureas

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

文主要介绍了以30%浓度的双氧水作为氧化剂氧化脲、氨脲来制备相应的脲和氨脲类化合物。

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.

文对巯乙酸的合成工艺进行了比较研究,认为氢化钠法和代酸钠法生成低,适宜于选矿用巯乙酸的生,脲法可得到较高浓度的巯乙酸。