Abstract

Single crystals of sodium hydrogen L-tartrate (SHT) were grown by the slow evaporation solution technique (SEST) from an aqueous solution of sodium hydroxide and L-tartaric acid at 353 K. It could successfully grow a large high-quality SHT single crystal. The 20 × 20 × 10 mm3 crystal was grown under controlled ambience for 40 days. The single crystal and powder XRD spectra confirmed the formation of the SHT single crystal, while the FTIR spectrum has shown the presence of the sodium hydrogen L-tartrate within the grown crystal. There is evident that SHT crystals have high thermal stability without any decomposition and phase transition. Additionally, the SHT may be composed of large electric dipoles, and hence, possess distinct physical properties, such as dielectricity, for optical applications.

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