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| THE DEHYDRATION OF HEXAHYDRATED YTTRIUM CHLORIDE AND THE VAPOR PHASE HYDROLYSIS OF ANHYDROUS |
| SU MIEN-TSNG; CH'IU PING-YI (Peking University) |
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Cite this article:
SU MIEN-TSNG; CH'IU PING-YI (Peking University). THE DEHYDRATION OF HEXAHYDRATED YTTRIUM CHLORIDE AND THE VAPOR PHASE HYDROLYSIS OF ANHYDROUS. Acta Metall Sin, 1966, 9(2): 142-147.
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Abstract Using a membrane null-manometer and a thermobalance the mechanism of the dehydration of hexahydrated yttrium chloride has been investigated. The following reactions have been verified:YCl_3·6H_2O■YCl_3·H_2O+5H_2O,YCl_3·H_2O■)YCl_3+H_2O,YCl_3+H_2O■YOCl+2HCl.The equilibrium of the last reaction concerning vapor phase hydrolysis have been studied. From the obtained experimental data the thermodynamic function of this reaction have been evaluated:log K_p=4.52-2617/T,ΔH_(650)~O=11.98 kcal/mole,ΔS_(650)~O=20.7 e.u.
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Received: 18 February 1966
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