Synthesis, Growth and Characterization of Sodium Mixed Cadmium Oxalate Crystals
Open Access
- 1 January 2016
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Journal of Crystallization Process and Technology
- Vol. 06 (02), 11-20
- https://doi.org/10.4236/jcpt.2016.62002
Abstract
The newly synthesized CdNa2?2C2O4?2H2O crystals having a size of 0.30 × 0.25 × 0.20 mm3 were grown by the single-diffusion reaction method in the silica gel medium at 28?C temperature. The crystalline nature of crystals was determined in 20 days by 1) varying the concentrations of the feed solutions and the gel pH level, 2) changing the specific gravity of the feed solution, and 3) changing the gel aging period. The crystals were characterized by using the methods such as powder X-ray diffraction, FTIR, UV, SEM-EDAX, TGA/DTA, and micro-hardness test. The structure of as-grown crystals was determined by the powder crystal XRD patterns. FTIR & SEM-EDAX spectral analyses were used to confirm the presence of the required functional groups of as grown crystals. UV absorption spectrum, the absorption peaks at 224.64 nanometer, determined the energy gap. TGA/DTA thermo gram was used to detect the thermal stability of sodium mixed cadmium oxalate dihydrate crystals. The present grown crystals were brittle and also plastic in nature was identified by Vickers micro-hardness test.Keywords
This publication has 17 references indexed in Scilit:
- Crystal structure and thermal characterization of cadmium oxalate [CdC2O4·3H2O] and barium-doped cadmium oxalate [Ba0.5Cd0.5(C2O4)2·5H2O] single crystals grown in silica gelInorganica Chimica Acta, 2009
- Optimized growth and characterization of cadmium oxalate single crystals in silica gelSolid State Sciences, 2008
- New alkaline earth-zirconium oxalates M2Zr(C2O4)4·nH2O (M=Ba, Sr, Ca) synthesis, crystal structure and thermal behaviorJournal of Solid State Chemistry, 2004
- Effect of temperature on nucleation and growth of cadmium oxalate single crystals in silica gelsMaterials Chemistry and Physics, 1998
- On the electrical and optical properties of CdS films thermally deposited by a modified sourceThin Solid Films, 1995
- The thermal decomposition of oxalates. part 21: The preparation and thermal decomposition of an oxy molybdenum(VI) oxalateThermochimica Acta, 1986
- Controlled nucleation of cadmium oxalate in silica hydrogel and characterization of grown crystalsJournal of Crystal Growth, 1981
- The precipitation of alkaline‐earth metal molybdate powders from aqueous solution. Crystal numbers, final morphology and sizesCrystal Research and Technology, 1977
- Impurity Distribution in Single CrystalsJournal of the Electrochemical Society, 1967
- Optical Properties and Electronic Structure of Amorphous GermaniumPhysica Status Solidi (b), 1966