SYNTHESIS, GROWTH AND CHARACTERIZATION OF L-ALANINE POTASSIUM SULPHATE SINGLE CRYSTALS

Single crystals of L-Alanine Potassium sulphate (LAPS) were synthesized. The synthesized material was purified by repeated recrystallization process. Single crystals were grown by slow evaporation method. The structural and lattice parameters determination was done by X-ray diffraction. The Fourier Transform Infra-Red (FTIR) spectroscopy was used to confirm the presence of functional groups in the material. The scanning electron microscopic analysis has been done to study the surface morphology of the crystal. Energy dispersive spectrum was done to identify the composition of elements present in the material. The thermal stability studies were carried out. The thermo analytical parameters like activation energy (E), Arrhenius pre exponential factor (A), entropy (∆S), enthalpy (∆H) and Gibb's free energy for activation (∆G) needed for a chemical reaction were found using Coats - Redfern method. The grown crystals were subjected to dielectric studies for different frequency and temperature. A comparative analysis has been done on the title compound.