It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.
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.
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.
Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.
Both the filtrate and the dialyzate of agave pollen can activate the enzyme, thus proving that there was activating substance of the thiol group in agave pollen.