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Thermodynamic Study on Aqueous Solutionsof (NH4)2SeO4and K2SeO4at 298.15 K

✍ Scribed by Todora Ojkova; Christomir Christov; Dencho Mihov


Publisher
Springer Vienna
Year
1999
Tongue
English
Weight
104 KB
Volume
130
Category
Article
ISSN
0026-9247

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Crystal Structure of (NH4)4H2(SeO4)3 and
✍ A. PawΕ‚owski; A. Haznar πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 349 KB

The structure of (NH 4 ) 4 H 2 (SeO 4 ) 3 and (ND 4 ) 4 D 2 (SeO 4 ) 3 superionic crystals below 180 K determined by X-ray singlecrystal analysis is presented. The compounds have the following crystal data: (NH 4 ) 4 H 2 (SeO 4 ) 3 (T ‫؍‬ 140 K), triclinic, space group P-1, a ‫؍‬ 7.647(2) A s , b ‫؍

Thermodynamic study of (m1Cs2SeO4 +
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The isopiestic method has been used to determine the osmotic coefficients of the binary solutions Cs 2 SeO 4 (aq) at T = 298.15 K from (1.090 to 4.591) mol β€’ kg -1 . The molalities m of (m 1 Cs 2 SeO 4 + m 2 NiSeO 4 )(aq) have been investigated by physicochemical analysis. The crystallization of a n

Structural and Vibrational Study of K2Se
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At room temperature, the new compound K 2 SeO 4 ' Te(OH) 6 was synthesized from water solutions of H 6 TeO 6 /K 2 SeO 4 . The potassium selenate tellurate (KTSe), M m "480.81 g, possesses a monoclinic structure with Cc space group. The crystal and re5nement cell parameters are: a ‫؍‬ 11.552(2) A s ,