Synthesis and Characterization of CdTr single crystals by gel technique 

By Narendra Shaligram Patil, Padmakar Arjun Savale, Suresh Keda Bachhav, Suresh Trimbak Pawar 


In the present study, single crystals of cadmium tartrate (CdTr) were grown by a simple gel technique using single diffusion method. The optimum growth conditions were optimized by varying various process parameters such as pH of the gel solution, gel concentration, gel setting time, concentration of the reactance. The test tubes were used as crystallization vessels while silica gel as a growth media. Gel was prepared by mixing the solutions tartaric acid (C4H6O6), sodium meta silicate (Na2SiO3), cadmium chloride (CdCl2) and transferred in glass tube of diameter 2.5cm and 15cm in length. The mouth of tube was covered by cotton plug and kept it for the setting. After setting the gel, it was left for aging. After two days duration the supernatant tartaric acid (C4H6O6) of 1M concentration was poured over the set gel by using pipette then it was kept undisturbed by covering the cotton plug on the mouth of tubes. After 48 hours of pouring the supernatant, the small nucleation growth was observed at below the interface of gel. The round shaped single good quality large yellowish crystals were grown in 45 days. These crystals were characterized by using X-ray diffraction and FTIR analysis. 

Keywords: Gel technique, Cadmium Tartrate crystal, XRD, FTIR

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