Correction values to be used on the gas-volumetric analysis of carbonates have been studied. The water vapor tension on the system, Na_2SO_4-H_2SO_4-H_2O (total SO_4 : 30%) and the solubility of carbon dioxide in the system were measured and these values were applied to the analysis of carbonates. The results have proved to be in good coincidence.
Science reports of the Research Institutes, Tohoku University. Ser. A, Physics, chemistry and metallurgy 7 515-523, 1955