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Lithium and thallium(I) selenites

Z. Mička, M. Ebert, P. Franče, and P. Ptáček

Department of Inorganic Chemistry, Faculty of Natural Sciences, Charles University, CS-128 40 Prague


Abstract: The solubility diagrams of the Li2SeO3—H2Se03—H20 and Tl2Se03—H2Se03—H20 systems were studied for the first time at 298 K. On the basis of the study of solubility, the conditions for the preparation of the sub­ stances were refined and the following lithium compounds were prepared:  Li2SeO3 • H20 , LiHSe03 , and LiH3(Se03)2 ; the prepared thallium compounds involved TlH3(Se03)2 and the compound Tl2Se205 that has not yet been described. The thermoanalytical properties and the IR spectra were studied for all the compounds prepared. On the basis of the results obtained, hydrogen bonding in Li2SeO3 • H20 was characterized and the behaviour of protons in the hydrogen bonds in acid salts was described from the point of view of the occupation of ordered or disordered positions.

Full paper in Portable Document Format: 403a309.pdf


Chemical Papers 40 (3) 309–322 (1986)

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