(1) The mixtures of chromic oxide and silica were electrically fused and by the experimental conditions the products of different colours were obtained. (2) The beautiful green and glassy fused product was obtained only by the second reheating process. (3) The products of different colours were examined by the petrographic microscope. (4) The experimental conditions to obtain the each product of different colours were discussed.
(1) The unsaponifiable matter of calamary oil contained 48% of cholesterol. (2) Besides cholesterol, the presence -of cetyl, batyl and selachyl alcohols has been confirmed. Oleyl and chimyl alcohols were probably present. A small amount of the alcohols of higher unsaturation appeared also to be present. (3) The occurrence of the alcohols of the selachyl alcohol group (monoglyceryl ethers) in calamary oil indicates the wide distribution and vital importance of these compounds as constituents of liver oils of various marine animals.
(1) From the experimental study, it has been found that the mechanism of absorption of moisture by quicklime can be explained as follows: free CaO absorbs moisture to form Ca(OH)2, the velocity of which being proportional to the humidity, and the Ca(OH)2 formed, getting off from the mother CaO in fine powders, and swelling in its volume, quickly absorbs moisture,the amount of which being proportional to the amount of Ca(OH)2 formed. (2) The general equation of the velocity of the increase of weight at constant temperature has been given as (Remark: Graphics omitted.) (3) The effect of temperature elevation has also been studied.
(I) The structure of osmium tetroxide was discussed. (II) It was made clear that the phenomenon of an enantiotropy of osmium tetroxide set forth by Krauss did not exist. (III) The vapour pressure of osmium tetroxide was measured between 15° and 130°C. Melting point, boiling point, heat of sublimation, heat of vaporization, heat of fusion, and free energy change among solid, liquid and vapour were determined. (IV) Surface tensions and densities from melting point up to 150°C. were determined. (V) Osmium tetroxide in liquid state somewhat associates below 70°C., though it is a normal liquid above 75°C. (VI) The critical temperature was determined as 405°C.