抄録
Studies were made on the measuring of the dissolving rate of salt by the fall of the temperature indicated when salt was dissolved in an agitator.
This method is very simple and can easilyhe used. The results obtained by this method proved to be fairly satisfactory. Experiments in this report made the following points clear:
1. As is already well known, coeficient of mass transfer does not have any relationship with the size of grain, but it is not constant and shows an increase as the dissolving rate increases.
2. The number ofgrains, even if they are screened, is not necessarilyequivalent to that of those grains added during the process of dissolution, but when it exceeds a certain degree of dissolution, it gradually decreases until it finally diminishes.
