Study of Tutton\u27s Salts (NH4)M(SO4)2 · 6H2O with Mixed Metal Ions in the Structure

Tutton\u27s salts, (NH4hM(S04h\u27 6H20, in which M represents one, two or three different metal ions in the structure have been obtained previously. Because of similar properties of the transition . elements we started to study the system (NH4hS04-H20-MS04 (M= Mn, Fe, Co, Ni, Cu, Zn or mixtures of these elements) and we isolated the crystals (NH4hM(S04)2. 6H20 where M represents mixtures of Ni, Zn; Co, Ni, Zn; Co, Ni, Cu, Zn; Fe, Co, Ni, Cu, Zn; Mn, Fe, Co, Ni, Cu, Zn. The products were characterized by chemical analysis. X-ray powder photographs of the products confirmed that they have structures similar to those of other Tutton\u27s salts. The thermal decomposition of the salts was studied in air and in an argon atmosphere and the final products were identified by X-ray powder photographs

Preparation of Oxide Solid Solutions by Thermal Decomposition of Tutton\u27s Salts, (NH4)2M(SO4)2∙6H2O (M=Mn, Zn, Fe)

A recent study of the themnal decomposition of Tutton\u27s salts, (NH4hM(S0412\u27 6H20, in which M represents a mixture of two to six transition elements, showed that when the salts are decomposed in an argon atmosphere the final products of decomposition are solid solutions of metal (2+) oxides but when decomposed in air the resulting solid solutions are metal (2 +) and (3 +) oxides.! Thermal decomposition of Tutton\u27s salts containing a definite ratio of metals in the structure may, therefore, be a route for the synthesis of a homogeneous, uncontaminated reactive powder useful for the preparation of homogeneous magnetic ceramics

Preparation of Oxide Solid Solutions by Thermal Decomposition of Tutton\u27s Salts, (NH4)2M(SO4)2∙6H2O (M=Mn, Zn, Fe)

A recent study of the themnal decomposition of Tutton\u27s salts, (NH4hM(S0412\u27 6H20, in which M represents a mixture of two to six transition elements, showed that when the salts are decomposed in an argon atmosphere the final products of decomposition are solid solutions of metal (2+) oxides but when decomposed in air the resulting solid solutions are metal (2 +) and (3 +) oxides.! Thermal decomposition of Tutton\u27s salts containing a definite ratio of metals in the structure may, therefore, be a route for the synthesis of a homogeneous, uncontaminated reactive powder useful for the preparation of homogeneous magnetic ceramics