Table of Contents
Indian Journal of Materials Science
Volume 2014, Article ID 189839, 6 pages
Research Article

Growth and Characterization of Agar Gel Grown Brushite Crystals

Physics Research Lab, Shri.V. S. Naik Arts, Commerce and Science College, Raver 425508, India

Received 27 October 2013; Accepted 2 December 2013; Published 8 January 2014

Academic Editors: A. Cremades and A. D. Yadav

Copyright © 2014 V. B. Suryawanshi and R. T. Chaudhari. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Brushite [CaHPO4·2H2O] or calcium hydrogen phosphate dihydrate (CHPD) also known as urinary crystal is a stable form of calcium phosphate. The brushite crystals were grown by single and double diffusion techniques in agar-agar gel at room temperature. Effects of different growth parameters were discussed in single diffusion and double diffusion techniques. Good quality star, needle, platy, rectangular, and prismatic shaped crystals in single diffusion and nuclei with dendritic growth were obtained in double diffusion. These grown nuclei were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), and thermogravimetric analysis (TGA). SEM has shown the different morphologies of crystals; FTIR has confirmed the presence of functional groups; crystalline nature was supported by XRD, whereas the TGA indicates total 24.68% loss in weight and formation of stable calcium pyrophosphate (Ca2P2O7) at 500°C.