World Journal of
Pharmaceutical and Life Sciences

An International Peer Reviewed Journal for Pharmaceutical and Life Sciences
An Official Publication of Society for Advance Healthcare Research (Reg. No. : 01/01/01/31674/16)
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Sumaiya Fatima*, Dr. Osman Ahmed and Dr. Anas Rasheed


It had been known since the middle of the 18th century that many substances could be obtained in more than one crystal form, and so the properties of these solids were studied to the fullest extent possible with the characterization tools (e.g., crystal morphology and melting phenomena) available at that time. Eventually the work of Von Laue and Bragg on the diffraction of X-rays by crystalline solids led to the development of technology that could be used to directly study the structures of such materials and to provide the structural justification for the phenomenon that became known as polymorphism.[1]

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