Structural, Spectroscopic and Thermal Studies of Potassium Di-hydrogen Citrate Crystal

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N.D. Pandya, J.H. Joshi, H.O. Jethva, M.J. Joshi (2017). Structural, Spectroscopic and Thermal Studies of Potassium Di-hydrogen Citrate Crystal. Mechanics, Materials Science & Engineering, Vol 10. doi:10.2412/mmse.6.81.837

Authors: N.D. Pandya, J.H. Joshi, H.O. Jethva, M.J. Joshi

ABSTRACT. Potassium dihydrogen citrate (KDC) finds wide applications in food products. Pure potassium dihydrogen citrate crystal was grown by slow solvent evaporation technique at room temperature. Grown crystal exhibited needle like morphology. The powder XRD shows triclinic structure symmetry with lattice parameters a=11.820 Å, b=14.970 Å, c=9.442 Å with angles α = 91.60°, β = 93.35°, γ = 110°. The presence of various functional groups of grown crystal was confirmed by using FT-IR spectroscopy. The thermogram indicates the thermal stability of the sample up to 100oC and then decomposes slowly into oxide stage through two stages. The results are discussed here.

Keywords: Potassium dihydrogen citrate, Powder XRD, FT-IR, TGA.

DOI 10.2412/mmse.6.81.837

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