Abstract
1. The velocity of reaction between DAHG and acid showed the additivity with respect to the composition of mixed test samples of DAHG, i. e., the linear function of the composition.
2. In the reaction between DAHG and hydrochloric acid mixed with sulfuric acid or nitric acid mixed with sulfuric acid, the finished time, t∞, and the pH flexional time, tv, became maximum at a certain mixing ratio, Rm, between the two original acids. Rm, was different with regard to the kind of test samples and the total amount of electrolytes and/or DAHG. The estimated activation energies were not remarkably changed near Rm, i. e., 20, 000 calories and almost the same as the values of different R.
3. The examinations of hydrochloric acid mixed with sulfates and of nitric acid mixed with sulfates gave about the same results as described above. The velocity of reaction between DAHG and acid mixed with salt was dependent upon the kind of anions, but fairly independent of the kind of cations.
