Abstract
The interaction between carbon tetrachloride and uranium dioxide was investigated from a series of gravimetric adsorption measurements in the temperature range 0–50 °C. All of the isotherms were Type II and completely reversible. Adsorption data could be fit to the Freundlich equation which along with the smoothness of the isotherms suggested a heterogeneous surface. The variation in the isosteric heat of adsorption, from an estimated 11.50 kcal/mole at zero coverage to 7.50 kcal/mole at a relative coverage of 1.9, further indicated the heterogeneous nature of the uranium dioxide surface. Application of the Polanyi theory produced a single characteristic curve which was independent of temperature. The surface area of the uranium dioxide was measured by argon adsorption and the cross-sectional area of the CCI 4 molecule was then calculated to be 33 Å 2 by an application of the BET equation.
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