A new technology was introduced for preparation of N-cyclohexy-2-benzothiazolesul fenamide (accelerator CBS)by reaction cyclohexylamine with crude 2-mercaptobenthiazole(accelerator M),by studying the influences of the reaction terms,we found a optimized production process terms which could be effective to control the insoluble methyl alcohol and free amine,and the yield was 87.

In the soybean powder phospholipids,acetone insoluble is over 97%,ethylether insoluble is less than 0.

Ethanol solution can emit visible fluorescence when induced by UV light.

Firstly, we employ the exciting light, which has the longest wavelength that can be absorbed by ethanol, to irradiate ethanol solutions to investigate the fluorescent spectra.

A comparision of the pros and cons is made between two methods of preparing standard ethanol solution with the first by way of volume fraction method,the second by way of weight fraction method.

The fluorescence spectra of alcohol solution induced by ultraviolet light and its characteristic are studied experimentally and theoretically in this paper.

The SERS Study on 2-Mercaptobenzothiazole Adsorbed on the Iron Electrode in an Ethanol Solvent;