Artículos de revistas
Formation Of Magnetite From Non-crystalline Iron(iii) Hydroxoacetate
Registro en:
Reactivity Of Solids. , v. 3, n. 3, p. 241 - 250, 1987.
1687336
10.1016/0168-7336(87)80051-7
2-s2.0-0023361288
Autor
De Abreu Filho P.P.
Pinheiro E.A.
Galembeck F.
Labaki L.C.
Institución
Resumen
A simple and convenient procedure for the synthesis of magnetite by heating iron(III) hydroxoacetate at temperatures above 250 °C under nitrogen is reported. The reaction product was characterized by X-ray diffraction, surface area determination and chemical analysis. On heating, the amorphous hydroxoacetate loses hydroxyl and acetate groups, as observed in the infrared spectra; evolved ammonia, carbon dioxide, acetone and acetic acid were identified; iron(II) formation in the hydroxoacetate is slow below 250°C but its rate increases with increasing temperature. At 382°C the iron(II) content in the product is 22.5% and the total iron content is 72.1%. © 1987. 3 3 241 250 Dousma, de Bruyn, (1976) J. Colloid Interface Sci., 56, pp. 527-539 Atkinson, Posner, Quirk, (1968) J. Inorg. Nucl. Chem., 30, p. 2371 Hsu, Ragone, AGEING OF HYDROLYSED IRON (III) SOLUTIONS1 (1972) Journal of Soil Science, 23, p. 17 Feitknecht, Michaelis, �ber die Hydrolyse von Eisen(III)-perchlorat-L�sungen (1962) Helvetica Chimica Acta, 45, p. 213 Fischer, Schweitmann, (1975) Clays Clay Miner., 23, p. 33 Joekes, Galembeck, Santos, Jafelicci, Jr., (1981) J. Colloid Interface Sci., 84, p. 278 Gregg, Hill, 807. The production of active solids by thermal decomposition. Part II. Ferric oxide (1953) Journal of the Chemical Society (Resumed), p. 3945 Gregg, Goodman, (1953) J. Chem. Soc., p. 3612 M. Jafelicci Jr., E. Conforto and F. Galembeck, Colloids Surfaces, in pressVogel, (1961) Quantitative Inorganic Analysis, p. 309. , 3rd ed., Longman, London Nakamoto, (1978) Infrared and Raman Spectra of Inorganic and Coordination Compounds, p. 9. , 3rd ed., Wiley, New York Silverstein, Bassler, (1968) Spectrometric Identification of Organic Compounds, p. 66. , 2nd ed., Wiley, New York Welti, (1970) Infrared Vapour Spectra, , Heyden, London Regazzoni, Urrutia, Blesa, Maroto, (1981) J. Inorg. Nucl. Chem., 43, p. 1489 Ceresa, γ-Fe<inf>2</inf>O<inf>3</inf>with condensed phosphates as antisintering agents (1981) IEEE Transactions on Magnetics, 17, p. 3023 Mehrotra, Bohra, (1983) Metal Carboxylates, p. 126. , Academic Press, London Edwards, Hayward, Transition metal acetates (1968) Canadian Journal of Chemistry, 46, p. 3443 Judd, Plunkett, Pope, (1974) J. Therm. Anal., 6, p. 555 Le Van, Perinet, (1965) Bull. Soc. Chim. Fr., p. 1379 Jewur, Kuriacose, (1977) Thermochim. Acta, 19, p. 195 Gerry, (1967) American Society for Testing and Materials, Powder Diffraction Card File, , Queens' University, Kingston, NY, ASTM Index Cards 15-615,11-614,19-629 H. Rechenberg, personal communicationDuval, (1963) Inorganic Thermogravimetric Analysis, p. 330. , 2nd ed., Elsevier, Amsterdam