We thank the company KNAUF for a sample of CaSO4⋅0.5 H2O and also Dr. Manfred Zabel, University of Regensburg, for the time at the single-crystal diffractometer.
How Much Water Does Calcined Gypsum Contain?†
Article first published online: 6 APR 2009
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 48, Issue 19, pages 3520–3524, April 27, 2009
How to Cite
Weiss, H. and Bräu, Michael F. (2009), How Much Water Does Calcined Gypsum Contain?. Angew. Chem. Int. Ed., 48: 3520–3524. doi: 10.1002/anie.200900726
- Issue published online: 23 APR 2009
- Article first published online: 6 APR 2009
- Manuscript Received: 6 FEB 2009
- calcium sulfate;
- structure elucidation;
Ordered water: Gypsum has been used for construction for millennia. The structure and water content of calcined gypsum, CaSO4⋅0.5 H2O, has been under discussion until now: single-crystal structure analysis (see picture: S yellow, Ca gray, O blue, H red) provides an ordered model that is confirmed by DFT calculations.