One sees reasonable agreement between theory and experiment. The mechanisms of the electrode reaction of chlorate ion were investigated, using Pt-electrode, by means of the technique of galvanostatic double pulses. The rate constants for the nucleophilic substitution reactions of substituted benzoyl chlorides with p -nitroaniline in such solvents as acetone, acetonitrile, methanol, ethanol, etc. were conductometrically determined, and the activation thermodynamic parameters were also evaluated. 2 is required, the isotopic experiment showed that half the vanadyl oxygen originated from the molecular oxygen. These complexes have been identified by visible spectra, infrared specra, T.G.A., D.T.A., and elemental analysis.
Diluents chosen are cyclohexane, toluene, benzene and chlorobenzene.
Concentrations of TBP were varied from 5 to 50 by volume percent and the composition of inorganic layer was kept constant. A method of estimating the solubility parameter of TBP is suggested. In each chlorination process, the components of products were examined by means of NMR spectrometry and the chlorination reaction was repeated without isolating each isomeric product. The feasibility of the present routes of preparations was discussed in respects to the conveniency of reaction conditions and respective overall yields of the processes. More than ten cartenoid pigments were separated from the dark red extracts of abdominal skin of Bombina Orientalis by TLC, and column chromatography, and the visible and infrared spectrum of purified carotenoids were determined.