Synthesis, characterization and thermal analysis of alkaline earth metal isethionates

Synthesis, characterization and thermal analysis of alkaline earth metal isethionates Three alkaline earth metal isethionates, Ca(HOCH2CH2SO3)2·2H2O, Sr(HOCH2CH2SO3)2·2H2O, and Ba(HOCH2CH2SO3)2, have been synthesized by the reaction of isethionic acid (HOCH2CH2SO3H, ITA) with corresponding alkaline earth metal carbonates. β-mercaptoethanol and hydrogen peroxide were used as raw materials to synthesize ITA. Thermal decomposition processes of these alkaline earth metal isethionates in air atmosphere are investigated in detail by thermogravimetry. TG analysis shows that thermal decomposition products are the corresponding sulfate salts, which are confirmed by X-ray diffraction results. Nuclear magnetic resonance (NMR) and Fourier transform infrared techniques are used to determine the chemical structure of M(HOCH2CH2SO3)2·xH2O (M = Ca, Sr, Ba). The melting points and ∆H fus are ascertained by differential scanning calorimetry studies. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis, characterization and thermal analysis of alkaline earth metal isethionates

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1495-3
Publisher site
See Article on Publisher Site

Abstract

Three alkaline earth metal isethionates, Ca(HOCH2CH2SO3)2·2H2O, Sr(HOCH2CH2SO3)2·2H2O, and Ba(HOCH2CH2SO3)2, have been synthesized by the reaction of isethionic acid (HOCH2CH2SO3H, ITA) with corresponding alkaline earth metal carbonates. β-mercaptoethanol and hydrogen peroxide were used as raw materials to synthesize ITA. Thermal decomposition processes of these alkaline earth metal isethionates in air atmosphere are investigated in detail by thermogravimetry. TG analysis shows that thermal decomposition products are the corresponding sulfate salts, which are confirmed by X-ray diffraction results. Nuclear magnetic resonance (NMR) and Fourier transform infrared techniques are used to determine the chemical structure of M(HOCH2CH2SO3)2·xH2O (M = Ca, Sr, Ba). The melting points and ∆H fus are ascertained by differential scanning calorimetry studies.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Dec 5, 2013

References

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