Polymorphism1-7 in the chemical sense of the word* is a phenomenon of the solid state,
associated with the structure of the solid. It has proved difficult to define precisely although …

The definitions and thermodynamic background for interpreting thermal analysis data are
presented in this review. Most drug substances and excipients which have been reported to …

By illustrating a wide range of specific applications in all major industries, this work
broadens the coverage of X-ray diffraction beyond basic tenets, research and academic …

This review article describes the applications of NMR to the study of polymorphs and related
forms (solvates) of organic (especially pharmaceutical) compounds, for which it is of …

High‐and low‐resolution solid‐state nuclear magnetic resonance (SSNMR) applications to
the study of pharmaceuticals are reviewed. Examples are shown involving the use of mono …

Sulfathiazole, a compound that forms four known crystal structures, has been examined with
a view to understanding its polymorphism. A graph set approach was used to classify the …

The influence of microwave irradiation on the drug release properties of alginate, alginate–
chitosan and chitosan beads was investigated. The beads were prepared with the highest …

The far-infrared properties of all five known polymorphic forms of the drug sulfathiazole have
been studied by terahertz pulsed spectroscopy and low-frequency Raman spectroscopy …

In this manuscript, the determination of solubility of crystalline drug nanosuspensions by a
range of methods is critically investigated. As the determinations of solubility were performed …

The effect of solvent in crystallization of polymorphs has been studied using the drug
sulphathiazole as a model compound. The solubilities of the four polymorphic forms of …