| Autor: |
Tolley, W., Izatt, R., Oscarson, J. |
| Zdroj: |
Metallurgical Transactions. Part B: Process Metallurgy; 1992, Vol. 23 Issue 1, p65-72, 8p |
| Abstrakt: |
Thermodynamic properties associated with the interaction of TiCl with supercritical CO have been determined using flow calorimetry. Incorporation of an ultrasonic densitometer in the calorimeter system increases the usefulness of the procedure. Titanium tetrachloride was shown to be highly soluble in supercritical CO near the CO critical point. Titanium tetrachloride exhibited excess enthalpy of mixing and vapor-liquid equilibrium behavior similar to those of organic hydrocarbons in supercritical CO. Solubility of TiCl in supercritical CO appeared unusual in view of the low solubility commonly observed for ionic metal salts in supercritical fluids. The solubility of TiCl is ascribed to the coincidence of valence charge and coordination number of the titanium. This equality of valence and coordination allows TiCl to exist as discrete molecules. Solution densities measured in the calorimetric apparatus varied nonlinearly with solution composition. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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