English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

A contribution to the mandelic acid phase diagram

MPS-Authors
/persons/resource/persons86390

Lorenz,  H.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;

/persons/resource/persons86477

Seidel-Morgenstern,  A.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Lorenz, H., & Seidel-Morgenstern, A. (2004). A contribution to the mandelic acid phase diagram. Thermochimica Acta, 415, 55-61. doi:10.1016/j.tca.2003.09.029.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-9EA3-6
Abstract
Literature data on the mandelic acid phase diagram are reviewed and examined together with new own results in order to clarify the heterogeneous equilibria in the binary system of the mandelic acid enantiomers and the racemate in water. For this purpose the thermal stability and the melting and recrystallization behavior of racemic mandelic acid are studied using TG and DSC. A metastable racemic phase is prepared from the melt and solution and identified by means of DSC, XRPD and IR spectroscopy as a monotropic modification of the stable racemic compound. Problems associated with handling the metastable phase are addressed. Finally, a mandelic acid phase diagram modified by polymorphy of the racemate is suggested. © 2003 Elsevier B.V. All rights reserved. [accessed 2010 November 27th]