ON THE FORMATION OF MANGANESE FERRITE FROM MNO2 AND FESO(4)7H(2)O AQUEOUS-SOLUTIONS THROUGH COPRECIPITATION

Authors
BUJOREANU VM SEGAL E BREZEANU M SALMON R VIDEAU JJ GHEORGHIES C
Citation
Vm. Bujoreanu et al., ON THE FORMATION OF MANGANESE FERRITE FROM MNO2 AND FESO(4)7H(2)O AQUEOUS-SOLUTIONS THROUGH COPRECIPITATION, Thermochimica acta, 288(1-2), 1996, pp. 221-237
Citations number
27
Categorie Soggetti
Chemistry Analytical
Journal title
Thermochimica acta → ACNP
ISSN journal
00406031
Volume
288
Issue
1-2
Year of publication
1996
Pages
221 - 237
Database
ISI
SICI code
0040-6031(1996)288:1-2<221:OTFOMF>2.0.ZU;2-N
Abstract
The formation and evolution of MnFe2O4 ferrite phase coprecipitated wi th NaOH from MnO2 and FeSO4 . 7H(2)O in aqueous solution are discussed , grounded on X-ray diffraction and derivatographic data, IR spectra a nd magnetic measurements. The results concerning the nature of the ini tial coprecipitates, their structural changes during ageing in the ori ginal solutions at temperatures in the range 25-95 degrees C as well a s the structure of the resulting ferritic phases are presented.