A spectroscopic study of the mineral paceite (calcium acetate)
(2007) A spectroscopic study of the mineral paceite (calcium acetate). Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 67(3-4):pp. 649-661.
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Abstract
A comprehensive spectroscopic analysis consisting of Raman, infrared (IR) and near infrared (NIR) spectroscopy was undertaken on two forms of calcium acetate with differing degrees of hydration. A monohydrate (Ca(CH3COO)2.H2O) and half-hydrate (Ca(CH3COO)2.0.5H2O) species were analysed. Assignments of vibrational bands due to the acetate anion have been made in all three forms of spectroscopy. Thermal analysis of the mineral was undertaken to follow its decomposition under a nitrogen atmosphere. Three major mass loss steps at ~120, 400 and 600 °C were revealed. These mass losses correspond very well to firstly, the loss of co-ordinated water molecules, and then the loss of water from the acetate anion, followed by finally the loss of carbon dioxide from the carbonate mineral to form a stable calcium oxide.
| Item Type: | Journal Article |
|---|---|
| Status: | Published |
| Keywords: | Calcium acetate, Raman spectroscopy, infrared spectroscopy, near infrared spectroscopy, thermal stability. |
| Subjects: | 250000 Chemical Sciences > 250100 Physical Chemistry (incl. Structural) > 250105 Structural Chemistry 250000 Chemical Sciences > 250100 Physical Chemistry (incl. Structural) > 250104 Chemical Spectroscopy 250000 Chemical Sciences > 250100 Physical Chemistry (incl. Structural) > 250103 Colloid and Surface Chemistry |
| ID Code: | 8027 |
| Deposited By: | Frost, Ray |
| Deposited On: | 08 June 2007 |
| Alternative Locations: | http://dx.doi.org/10.1016/j.saa.2006.07.045 |
| Copyright Owner: | Copyright 2007 Elsevier |
| Copyright Statement: | Reproduced in accordance with the copyright policy of the publisher. |