Polymorphism in Sulfanilamide-d4

descriptionPublicationkeyboard_double_arrow_right Article 01 Jul 1970 English Publisher:Elsevier BVJournal:Journal of Pharmaceutical Sciences, volume 59, pages 972-975 (issn: 0022-3549,

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Authors: H O, Lin; J K, Guillory;

doi: 10.1002/jps.2600590711

pmid: 5428091

Polymorphism in Sulfanilamide-d4

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Abstract

Thermal behaviors of four crystalline forms of sulfanilamide and of sulfanilamide-d4 have been examined. Heats of transition and fusion have been determined. The deuterated modifications exhibit smaller heats of transition and heats of fusion than the corresponding undeuterated forms. There is, however, a difference in the magnitude of this decrease in the case of the heats of transition.

Related Organizations

University of Iowa
United States

Keywords

Chemistry, Chemical Phenomena, Spectrophotometry, Sulfanilamides, Thermodynamics

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