Title of article
7Li, 23Na, 39K and 133Cs NMR comparative equilibrium study of alkali metal cation hydroxide complexes in aqueous solutions. First numerical value for CsOH formation
Author/Authors
K. Popov، نويسنده , , L.H.J. Lajunen، نويسنده , , A. Popov، نويسنده , , H. R?nkk?m?ki، نويسنده , , M. Hannu-Kuure، نويسنده , , A. Vendilo، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2002
Pages
3
From page
223
To page
225
Abstract
7Li, 23Na, 39K and 133Cs NMR spectrometric comparative study of 0.05 M alkali metal chloride hydrolysis in aqueous solutions 3.4 M Me4NCl/Me4NOH at 25 °C is performed. It is found that chemical shifts of all nuclei involved are sensitive to variations of ionic strength and pH. Stability constants for Li+, Na+, K+ and Cs+ lg K(M+OH⇔MOH) are found to be −0.04 (0.05), −0.93 (0.04), −0.7 (0.2) and −0.8 (0.1), respectively. The stability of CsOH is estimated to be the same as that of NaOH and KOH within an experimental error. No evidence of chloro-complexes formation was found.
Keywords
Equilibrium constants , , , Alkali cation hydroxides , and spectrometry
Journal title
Inorganic Chemistry Communications
Serial Year
2002
Journal title
Inorganic Chemistry Communications
Record number
1315526
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