K C Patil
Articles written in Journal of Chemical Sciences
Volume 88 Issue 3 June 1979 pp 211-216 Inorganic and Analytical
Preparation and characterization of hydrazine derivatives. Part-II: Reaction of transition metal ammonium double sulphates with hydrazine hydrate
K C Patil R Soundararajan V R Pai Verneker
Transition metal ammonium double sulphates (NH4)2M(SO4)2· 6H2O, where M = Fe, Co and Ni react with hydrazine hydrate in air giving crystalline compounds of the general formula (N2H5) [M(N2H3COO)3] H2O. The reaction proceeds through (N2H5)2 M(SO4)2, · 3N2H4, (N2H5)2 [M(OH)4 · (N2H4)2], M(N2H3COO)2 · (N2H4)2 and N2H5 [M(N2 H3 COO)3] intermediates. The reaction sequence is followed by chemical analysis and infrared spectra. A possible reaction mechanism has been suggested.
Volume 97 Issue 2 September 1986 pp 117-123 Inorganic and Analytical
Preparation, characterization and thermal analysis of rare earth and uranyl hydrazinecarboxylate derivatives
G V Mahesh P Ravindranathan K C Patil
Hydrazinecarboxylate derivatives of rare earth elements Ln(N2H3COO)3-3H2O (Ln=Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, and Y) and UO2(N2H3COO)2·N2H4·H2O have been prepared and characterized by chemical analysis and infrared spectra. Simultaneous TG-DTG-DTA of the rare earth complexes show that the thermal decompositions occur through carbonate and oxycarbonate intermediates to the respective oxides. The oxide formation temperatures are lower than the corresponding oxalates and acetates. The uranyl complex decomposes to U3O8 as the final product of decomposition.
Volume 101 Issue 5 October 1989 pp 377-381 Inorganic and Analytical
Synthesis, characterisation and thermal analysis of copper (II) and chromium (II, III) hydrazine carboxylates
Copper(II) hydrazine carboxylate monohydrate, Cu(N2H3COO)2·H2O and chromium (II, III) hydrazine carboxylate hydrates, Cu(N2H3COO)2·H2O and Cu(N2H3COO)2·3H2O have been prepared and characterised by chemical analysis, IR, visible spectra and magnetic measurements. Thermal analysis of the copper complex yields a mixture of copper metal and copper oxide. Chromium complexes on thermal decomposition yield Cr2O3 as residue. Decomposition of chromium(HI) complex under hydrothermal conditions yield CrOOH, a precursor to CrO2.
Volume 106 Issue 3 June 1994 pp 757-757
Controlled combustion synthesis of Nasicon: A low thermal expansion material
Volume 106 Issue 3 June 1994 pp 758-758
Synthesis and properties of iron, aluminium and yttrium vanadates
Volume 112 Issue 3 June 2000 pp 435-435
Tailoring the particulate properties of aluminates prepared by combustion method
Volume 135, 2023
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