On the polymorphism of barbiturates in powders and tablets. Part 2: on the infrared spectroscopy and the X-ray diffractometry of barbital
Hollenbach, K.; Mezösi, J.; Pintye-Hódi, K.; Kedvessy, G.
Die Pharmazie 34(4): 240-242
1979
ISSN/ISBN: 0031-7144 PMID: 482331 Document Number: 142116
By means of IR spectroscopy and X-ray diffractometry, two commercial brands of barbital and four barbital substances recrystallized from water or an acetone-water mixture were examined for polymorphism. The results obtained demonstrate that these substances differ in crystal lattice and that there are six polymorphic modifications.
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