Growth, structural, spectral, optical, mechanical and thermal properties of LValine Added Sulphamic acid Single Crystals

Volume 20 No 8 (2022)

Fredselin R.S Vithel and R. Manimekalai

DOI: 10.14704/nq.2022.20.8.NQ22274

Abstract

L valine in added sulphamic acid crystals was grown by slow evaporation technique. The harvested crystals were subjected to various characterizations for revealing its structural, optical, mechanical and thermal properties. Powder X – ray diffraction expose that LVSA crystallizes in an orthorhombic structure. FTIR techniques have verified its structural identification. The EDAX analysis confirmed the presence of carbon in the grown crystal. The surface morphology of crystals was studied. Optical absorbance and transmittance spectrum recorded and exhibited that this crystals has good transparency in the visible region. From absorbance spectrum the optical band gap energy is found to be 3.5ev. The mechanically soft nature of the crystal was estimated by Vickers hardness measurement. The stability of LVSA crystal was ascertained from thermo gravimetric and differential thermal analysis.

Keywords

Sulphamic acid, L-valine,XRD, FTIR, EDAX, SEM

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