A rapid method to prepare crystalline fine particle chromite powders

Chandran, Gopi R and Patil, KC (1992) A rapid method to prepare crystalline fine particle chromite powders. In: Materials Letters, 12 (6). pp. 437-441.

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Abstract

Fine particle $MgCr_2O_4, ZnCr_2O_4$ and $LaCrO_3$, have been obtained by rapidly heating an aqueous solution containing the corresponding metal (M) nitrate, chromium nitrate and maleie hydrazide in appropriate mole ratios at 375°C. The solution boils, froths and ignites to burn with a frame and yields voluminous chromite powders. Formation of spine1 chromites, $MCr_2O_4$, and pcrovskite $LaCrO_3$ was confirmed by their characteristic powder X-ray diffraction patterns and infrared spectra. The surface area of the chromites ranged from 32 to $72 m^{2/g}$.

Item Type:	Journal Article
Publication:	Materials Letters
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited:	31 Oct 2006
Last Modified:	19 Sep 2010 04:31
URI:	http://eprints.iisc.ac.in/id/eprint/8342

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