Partial molar volumes of 1,2-dimethoxyethane, diethylene glycol dimethyl ether, ethyl sulfide, ethyl, npropyl, and allyl bromide, methyl, ethyl, n-propyl, n-butyl, n-pentyl, and allyl alcohol, and ethylene, trimethylene, tetramethylene, and pentamethylene glycol were measured in water at 25.0°C. Values obtained were correlated with the Bondi's van der Waals volume. It was shown that the partial molar volume is composed of the van der Waals volume and the void partial molar volume. An experimental equation for the partial molar volume was proposed, which includes three terms, i.e., the van der Waals volume, the void partial molar volume of a hydrocarbon having the same van der Waals volume as the solute, and the solute-solvent interaction partial molar volume. It was shown that the values of the three terms can be determined experimentally. Through the discussion of the solute-solvent interaction partial molar volume for the alcohols and glycols, the contribution of hydrogen bonds between the solutes and the surrounding water molecules to the partial molar volume was estimated.

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Summary : Investigations on the manufacture of synthesis gas by direct partial oxidation of methane with metallic oxides in a fixed bed were made . From the equilibrium consideration and the experimental results, it was known that iron oxide-alumina was the most adequate oxygen carrier and the addition of alumina to iron oxide had effects on the promotion of reactivity.The oxygen carrier capable of producing carbon monoxide and hydrogen was of two stages Fe, while in the latter it was over the equilibrium value.In general, the degree of reduction of iron oxide was not uniform throughout the bed; the degree of reduction of the oxide at the inlet was larger than that at the outlet. Moreover, carbon monoxide and hydrogen formed at the inlet side of the bed might be further oxidized at the succeeding parts.Discussions are given on the conditions under which gases rich in carbon monoxide and hydrogen is obtainable.