814-88-0Relevant academic research and scientific papers
β-CdC2O4
Jeanneau,Audebrand,Louer
, p. 1012 - 1013 (2001)
Crystals of anhydrous cadmium oxalate, β-[Cd(C2O4)], have been synthesized hydrothermally and the crystal structure solved using single-crystal X-ray diffraction data. The Cd and oxalate ions lie about independent inversion centres. The structure consists of a three-dimensional framework built from sheets of cadmium octahedra linked together by oxalate groups.
Interaction of zinc, cadmium, and manganese oxalates with ammonia sulfur
Odin,Grin'ko,Safronov
, p. 990 - 991 (2008/10/09)
Interaction of zinc, cadmium, and manganese oxalates with molten sulfur has been investigated by a nonisothermal method. This interaction has been shown to be accompanied by the formation of zinc, cadmium, and manganese sulfide oxalates, which are mixed-anion compounds. The compositions of the sulfide oxalates have been determined. The activation energies have been determined for the reactions that lead to the formation of sulfide oxalates. Copyright
Non-isothermal studies for the decomposition course of CdC 2O4-ZnC2O4 mixture in air
Gabal
, p. 55 - 62 (2008/10/09)
The thermal decomposition of cadmium-zinc oxalate (1:1mol ratios) mixture in air was investigated by non-isothermal thermogravimetric analysis. Intermediates and the final products were characterized by X-ray diffraction and scanning electron microscopy techniques. TG showed that the mixture dehydrated in two steps and decomposed exothermically to CdO-ZnO mixture at 390°C in a further two steps. The observed increase in the intensity of the X-ray diffraction lines by raising the calcination temperature from 400 to 800°C is attributed to the grain growth of CdO-ZnO mixture as revealed from SEM experiments. The kinetics of the oxalate decomposition steps was performed using the various reaction interface models and differential techniques of computational analysis of non-isothermal data. The activation parameters, calculated using the integral composite method, showed that the reactions were best described by the random nucleation model characteristic of solid state nucleation growth mechanism. The results of activation parameters for the different decomposition steps are compared and discussed.
Synthesis and thermal decomposition of new complexes of bipyridine isomers with zinc(II) and cadmium(II) oxalates
Czakis-Sulikowska,Malinowska,Markiewicz
, p. 151 - 156 (2008/10/08)
The new mixed ligand complexes with the formulae Zn(2-bipy)(ox), Zn(4-bipy)1.5(ox)·H2O, Zn(2,4′-bipy)2(ox)·2H2O, Cd(2-bipy)(ox)·2H2O, Cd(4-bipy)2(ox) and Cd(2,4′-bipy)(ox)·2H2O (2-bipy, 4-b
Thermal and electrical properties of manganese (II) oxalate dihydrate and cadmium (II) oxalate monohydrate
Nikumbh,Athare,Pardeshi
, p. 187 - 192 (2008/10/09)
The thermal decomposition of MnC2O4·2H2O and CdC2O4·H2O have been studied by two probe direct current electrical conductivity measurements under the atmospheres of static air, dynamic dry n
Polarographic Determination of Stability Constants of Ternary Complexes of Cadmium with α-Alanine as Primary Ligand and Oxalic Acid as Secondary Ligand
Khan, Farid
, p. 464 - 468 (2007/10/02)
Polarographic technique was used to determine the values of solution stability of Cd-α-alaninate-oxalate system at pH 8.40 and ionic strength (μ) 1.0 M KNO3.The reduction of the metal and its complexes was reversible and diffusion-controlled.CdII forms two mixed complexes, viz. and 2- with α-alanine and oxalic acid at 42 deg.The values of stability constants are logβ11=6.24 and logβ21=9.23, respectively.
