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Solubility and spectrochemical characteristics of synthetic chernikovite and meta-ankoleite

Published online by Cambridge University Press:  05 July 2018

Laurent Van Haverbeke ,
Renaud Vochten  and
Karel Van Springel
Laurent Van Haverbeke
Affiliation:
Departement Scheikunde - Experimentele Mineralogie, Universiteit Antwerpen (RUCA), Middelheimlaan 1, B-2020 Antwerpen, Belgium
Renaud Vochten
Affiliation:
Departement Scheikunde - Experimentele Mineralogie, Universiteit Antwerpen (RUCA), Middelheimlaan 1, B-2020 Antwerpen, Belgium
Karel Van Springel
Affiliation:
Departement Scheikunde - Experimentele Mineralogie, Universiteit Antwerpen (RUCA), Middelheimlaan 1, B-2020 Antwerpen, Belgium
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Abstract

Chernikovite and meta-ankoleite were synthesized with a relatively high crystallinity and the compounds were identified by means of chemical analysis and X-ray diffraction. The infrared spectra were recorded and the bands assigned. From the luminescence spectra, the band-gap energy for both compounds was calculated as 2.35 eV, indicating that they must be considered as insulators. The dependence of the solubilities of these compounds on the acidity of the solution was studied, and the dominant ionic species were determined. The pKsp values of chernikovite and meta-ankoleite were found to be 22.73±0.24 and 24.30±0.81 respectively.

Keywords

chernikovitemeta-ankoleitesolubilitysolubility productinfrared spectra
Type
Mineralogy
Information
Mineralogical Magazine , Volume 60 , Issue 402 , October 1996 , pp. 759 - 766
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1996

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