Growth and Analysis of NSH and KMNSH Crystals by Slow Evaporation Technique

Abstract

Nickel sulphate hexahydrate (NSH) and potassium magnesium nickel sulphate hexahydrate (KMNSH) single crystals were grown by slow evaporation method. The grown NSH crystal was found to crystallize in tetragonal system with space group P41 21 2 and KMNSH in monoclinic system with space group P121/c. The optical band gap energies of the grown crystals using UV-Vis spectral results for the doped and undoped NSH crystals were calculated. The presence of various functional groups in the crystal was identified by FTIR analysis. The thermal behaviour of the grown crystal has been studied by TGA/DTA analysis.

Growth and characterization of K2Zn Ni1−(SO4)2·6H2O mixed crystals for UV filters

“…The total dehydration temperature of the sample is around 250 ο C at weight loss of 74.44% for K 2 Zn 0. The dehydration temperature of PZNSHH is 16 o C higher than the KMNSH [13] and 34 o C higher than the pure NSH [14]. The lower concentration of Zinc metal was stimulated that the higher thermal stability of the present compound.…”