Nucleation kinetics, growth and studies of β-alanine single crystals

Solubility and metastable zone width for the re-crystallized salt of β-alanine was determined. Induction period measurement for the selected supersaturation ratios at room temperature (31 °C) was carried out for supersaturated aqueous solutions of β-alanine and it is noticed that induction period decreases with increase of supersaturation ratio. The nucleation parameters such as Gibbs free energy change, radius and number of molecules of the critical nucleus, interfacial tension and the nucleation rate have been evaluated by classical nucleation theory. Single crystals of β-alanine were grown using the optimized nucleation parameters by solution method and grown crystals have been subjected to various studies like XRD studies, FTIR, optical, thermal and SHG studies.

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► Nucleation kinetic studies for β-alanine are carried out for first time.
► Single crystals were grown by solvent evaporation method.
► Functional groups were identified by FTIR analysis.
► Good transferency and lower cut-off wavelength.
► Crystal is thermally stable up to 190 °C.