Study of the products of the dehydration reaction of CuSO4 · 5H2O in X-shaped and elliptic nuclei |
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| Authors: | AI Zagray VV Zyryanov NZ Lyakhov AP Chupakhin VV Boldyrev |
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| Institution: | Institute of Physico-Chemical Principles of Processing of Raw Materials, Siberian Division of the U.S.S.R. Academy of Sciences, Novosibirsk, 630091, Derzhavina 18 U.S.S.R. |
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| Abstract: | The products of the dehydration of CuSO4 · 5H2O under different conditions have been studied by the methods of local X-ray diffraction analysis and EPR. It is shown that the dehydration in vacuo when X-shaped nuclei are formed proceeds through the formation of an intermediate product having a monohydrate composition and a crystalline lattice close to the initial lattice of the pentahydrate. Then the amorphization and crystallization of CuSO4 · H2O follows. When dehydration occurs in water vapour through ellipsoidal nuclei the structure of the trihydrate formed is oriented relative to the initial structure of CuSO4 · 5H2O. |
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