Chem. J. Chinese Universities ›› 1986, Vol. 7 ›› Issue (5): 453.
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Zhao Zhenguo, Wu Yin, Lin Yao
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Abstract: The adsorption isotherms for benzyl alcohol, anisole, benzaldehyde and benzoic acid on silica gel from cyclohexane have been measured at 15℃ and 30℃. The standard changes of free energy △G°, enthalpy △H° and entropy △S° in adsorption processes have been calculated from the Langmuir parameters. The results indicate that △S° is all positive. The shifts △VOHof the adsorption band of the stretching frequency of free hydroxyl groups on silica gel at high surface coverages were determined. The results show that △H0 is linear function of △vOHor △vOH1/2.
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Zhao Zhenguo, Wu Yin, Lin Yao . The Adsorption of Oxy-Aromatic Compounds from Cyclohexane onto Silica Gel[J]. Chem. J. Chinese Universities, 1986, 7(5): 453.
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