Determination of Triclosan in disinfector by capillary zone electrophoresis;

Research on antiplaque principle and clinical trials of triclosan in mouthrinses;

The Formation Ways of Dioxins in Triclosan and Their Harmness;

Study on the biotoxiacity of TCS to the biological wastewater treatment;

Using phase transfer catalysis instead of traditional high temperature melting reaction, We have achieved 90% yield in the key etherization step of the synthesis of 244′-trichloro -2′-hydroxyldiphenyl ether (TCS).

This paper introduces the methods of preparation of 3,5,6-trichloropyridin-2-ol, and mainly discusses the preparation from trichloroacetyl chloride and acrylonitrile by separately conducting the individual addition, cyclization and aromatization steps.

The outlets of methane tetrachloride produced in the production facilities of chloromethane in China at present were proposed,such as conversion to diphenyl ketone,ethylene tetrachloride,cinnamic acid,trichloroacetyl chloride,methane chloride and chloroform.

Thus,91 0 g trichloroacetyl chloride and 34 5 g acrylonitrile were refluxed with 1 4 g catalyst C D in 200 mL nitrobenzene at 145 ℃ for 4 h and.

A by-product which will result in unfavorable effects for production technology is usually formed in the process of synthesizing trichloroacetic chloride.

Fenchlorazole ethyl was synthesized in the suitable solvent at 115℃ with α amino (2,4 dichlorophenylhydrono) glyoxylic ethyl ester and trichloroacetic chloride (molar ratio 1∶1) as the raw materials.

Three possible processes to synthesize trichloroacetic chloride was evaluated based on the yield,cost,waste treatment, equipment and operation.