硫脲又名硫代脲素,工业上采用三种工艺方法生产,一是硫代氰酸胺法,二是重氮甲烷法,三是石灰氮法。目前我国绝大部分的生产厂家采用石灰氮法生产,硫代氰酸胺法和重氮甲烷法已逐渐淘汰。石 Thiourea, also known as thiourea, industrial use of three methods of production, one thiocyanate method, the second is the diazomethane method, the third is lime nitrogen method. At present, most of the manufacturers in our country use the lime nitrogen method to produce, the thiocyanate cyanide method and the diazomethane method have been gradually eliminated. stone