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Preparation of fine particle chromites: A combustion approach

Manoharan, Sundar S and Kumar, NRS and Patil, KC (1990) Preparation of fine particle chromites: A combustion approach. In: Materials Research Bulletin, 25 (6). pp. 731-738.

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Fine particle metal chromites, $MCr_2O_4$ where M = Mg, Mn, Fe, Co, Ni, Cu and Zn have been obtained by the combustion of a redox mixture containing corresponding divalent metal nitrate, chromium (III) nitrate and tetraformal trisazine (TFTA). An aqueous saturated solution of the redox mixture when rapidly heated at 350°C boils, foams and ignites to yield voluminous, fine particle chromite powder. Formation of chromite was confirmed by X-ray diffraction pattern and IR spectra. Fine particle nature of chromites was studied using particle size analysis, surface area measurements, TEM and SEM. The particle size of chromites is below lum and the surface area ranges from 13 to $30 m^2/g$.

Item Type: Journal Article
Publication: Materials Research Bulletin
Publisher: Elsevier Science Ltd.
Additional Information: Copyright of this article belongs to Elsevier Science Ltd
Keywords: Chromites;trisazine
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 06 Dec 2007
Last Modified: 19 Sep 2010 04:41
URI: http://eprints.iisc.ac.in/id/eprint/12464

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