Growth of barium oxalate crystals in agar-agar gel and their characterization

被引：14
|
作者：
Dalai, P. V. [1 ]
Saraf, K. B. [1 ]
Shah, S. [2 ]
机构：
[1] Pratap Coll, PG Dept Phys, Amalner 425401, MS, India
[2] Natl Chem Lab, Pune, MS, India
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 2009年 / 44卷 / 01期
关键词：
crystal growth; barium oxalate; XRD; FT-IR; TGA/DTA; SINGLE-CRYSTALS;
D O I：
10.1002/crat.200800221
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Single crystals of barium oxalate have been grown by get method using agar-agar gel as media of growth at ambient temperature. The optimum conditions were established by varying various parameters such as concentration of gel, concentration of reactant, gel setting time etc. Prismatic platy shaped transparent crystals were obtained. The grown crystals were characterized through powder X-ray diffraction (XRD), Fourier transform infrared (FT-IR) studies, Thermogravimetric (TGA) and Differential thermal analysis (DTA). The compound crystallizes under monoclinic structure with lattice parameters a = 6.6562 angstrom, b = 8.0464 angstrom, c = 2.8090 angstrom, beta= 96.832 degrees, and V = 149.38 angstrom(3). The FT-IR spectrum indicates OH and carbonyl group along with the presence of metal-oxygen bond. The TGA indicates 17.75% weight loss at 550 degrees C from which the decomposition pattern is formulated. (c) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码：36 / 42
页数：7
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