Formation Of Magnetite From Non-crystalline Iron(iii) Hydroxoacetate
- De Abreu Filho P.P.
- Pinheiro E.A.
- Galembeck F.
- Labaki L.C.
DOIAbstract
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%. © 1987.33241250Dousma, de Bruyn, (1976) J. Colloid Interface Sci., 56, pp. 527-539Atkinson...
Add to ORKG