抄録
We made studies on the method for determining the total water content, hygroscopic and combined, of the mineral substances. The analytical train consists of a purifying and drying train, a combustion tube-mounted in a high-temperature furnace and an absorption train. As oxygen is liberated and oxidizes ferro alloy and metal in samples by decomposition of the water contained in them due to the high temperature, the real water content can not be determined. Therefore, oxygen as the sweeping medium which passes successively through the train, was selected in order to avoid any such reaction occurring within the train. On this method the blank test was the most important and was investigated to establish satisfactory results for determining the total water content in the mineral substances. The results presented also confirm the reproducibility of the method described herein.
