Open Access
Issue |
JEEP 2009
2009
|
|
---|---|---|
Article Number | 00019 | |
Number of page(s) | 4 | |
DOI | https://doi.org/10.1051/jeep/200900019 | |
Published online | 04 December 2009 |
JEEP 2009, 00019 (2009)
DOI: 10.1051/jeep/200900019
1 SMS laboratory, University of Rouen, rue Lucien Tesnière, Mont Saint Aignan, 76821, France
2 Syncom BV, Kadijk 3, Groningen, 9747AT, The Netherlands
3 Solid State Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
Florian.querniard@etu.univ-rouen.fr
Published online: 4 December 2009
Key words: Phencyphos -- Hydration -- Dehydration, Phase diagrams
© Owned by the authors, published by EDP Sciences 2009
DOI: 10.1051/jeep/200900019
Hydration and Dehydration of the Pure Enantiomer and the Racemic of Phencyphos
F. Querniard1, M. Leeman2, Y. Cartigny1, R.M. Kellogg2, E. Vlieg3 and G. Coquerel11 SMS laboratory, University of Rouen, rue Lucien Tesnière, Mont Saint Aignan, 76821, France
2 Syncom BV, Kadijk 3, Groningen, 9747AT, The Netherlands
3 Solid State Chemistry, Institute for Molecules and Materials, Radboud University, Heyendaalseweg 135, Nijmegen, 6525 AJ, The Netherlands
Florian.querniard@etu.univ-rouen.fr
Published online: 4 December 2009
Abstract
This study is devoted to the understanding of phencyphos hydration/dehydration behaviour. Phencyphos is a resolving agent used in the so-called Dutch resolution. Batches of phencyphos contain various amounts of water (from 0 to 1 equivalent of water) evolving over time, inducing wrong dosages.
Phase diagrams between phencyphos, water and methanol or ethanol were determined. Then, solid phases were characterized and compared with the means of X-ray Powder Diffraction, InfraRed spectroscopy, Differential Scanning Calorimetry and Dynamic Vapour Sorption. All these experiments have led to reliable conversion methods and storage conditions.
Key words: Phencyphos -- Hydration -- Dehydration, Phase diagrams
© Owned by the authors, published by EDP Sciences 2009