Solubilities and saturated densities of carbon dioxide in four equi-molar mixtures of tridecane+pentadecane, tridecane+hexadecane, tetradecane+pentadecane, and tetradecane+hexadecane were measured at 313.15K without analysis of the phase compositions. Solubilities of carbon dioxide and saturated liquid densities reported in the previous study for four hydrocarbons, tridecane, tetradecane, pentadecane, and hexadecane, were correlated with an equation of state. The binary interaction parameters in the equation of state were further generalized. Using the generalized parameters in the equation of state, solubilities and saturated liquid densities of carbon dioxide in those hydrocarbons could be successfully calculated.

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The thermal properties of zinc · chromium spinel-chromium system were measured by flash method. The heat capacity of composite compacts changes approximately linearly with Cr content, but the thermal diffusivity was increased when a proper quantity of metallic chromium was added to the ZnCr₂O₄-Cr solidification system. A remarkable increase in thermal conductivity was observed when over 50 mass percent of Cr content. This corresponded to the proportion of ZnCr₂O₄ spinel and metallic chromium of composite compacts. And this was attributed to the electron conductivity increase due to the increase of metallic chromium in ZnCr₂O₄-Cr solidification system. The thermal expansion coefficient was increased with an increase of metallic chromium content. This was explained by the X-ray diffraction evidence that formation of continuous phase of metallic chromium in composite compacts.

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Nowadays, various kinds of flammable gases have been used in many industries and there always exists higher possibilities encountering with the accidents of explosion. In this review, the explosion limits of the flammable gases are described from theoretical and experimental point of view.

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Recent developments of multiproperty measuring methods for thermophysical properties of solids are briefly reviewed. In this paper, the measuring methods which are mainly applied in the temperature range of 300 to 1000K are discussed. Those are as follows; the direct electrical heating method, the advanced transient calorimetric technique, the Laplace- transform method, the transient state flat-plate method, the noncontact measuring method, and the transient three-point method.

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Supercritical fluids are attractive solvent since their solvent power is moderate and their transport properties are favorable for mass-transfer operations. Recent studies on supercritical fluids have revealed that the clustering of solvent molecules around a solute molecule plays a significant role for the solvent characteristics. This article describes solvent properties of supercritical fluids, such as solubility, chromatographic separation and adsorption, and it gives a review of microscopic structures in terms of clusters formed in supercritical fluids.

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