Growth of Ethyl-Para-Hydroxybenzoate Single Crystal and its Characterization


Article Preview

Ethyl-para-hydroxybenzoate (EHB) single crystals have been grown by slow evaporation solution technique (SEST) using methanol as a solvent. The grown crystal was subjected to single crystal X-ray diffraction analysis, confirming that the crystal belongs to monoclinic structure. The grown crystal was characterized by powder X-ray diffraction analysis. The functional groups present in the EHB crystal have been identified using FTIR spectrum analysis. The laser damage threshold of EHB crystal was measured. The mechanical strength of the grown EHB crystal was measured using Vickers microhardness, no cracks have been observed up to 100 g of load. The optical transparency of the grown EHB crystal has been measured by UV-Vis-NIR spectrophotometer. The refractive index of grown EHB single crystal is 1.6610. The dielectric permittivity and dielectric loss of the EHB single crystal were studied as function of frequency and temperature. The thermogravimetric analysis (TG) and differential thermal analysis (DTA) were studied. The melting point of EHB was 123°C. The luminescence behavior of EHB single crystal has been analyzed by photoluminescence analysis.



Edited by:

D. Rajan Babu




N. Karunagaran and P. Ramasamy, "Growth of Ethyl-Para-Hydroxybenzoate Single Crystal and its Characterization", Advanced Materials Research, Vol. 584, pp. 121-125, 2012

Online since:

October 2012




[1] Li Zhengdong, Wu Baichang, Su Genbo, J. Cryst. Growth 178 (1997) 539.

[2] X.N. Fang, W.T. Chen, Y.P. Xu, Q. -Y. Luo, H. -L. Chen, J. Iran. Chem. Soc. 6 (2009) 213.

[3] Keyan Li, Xingtao Wang, Fangfang Zhang, Dongfeng Xue Phys. Rev. Lett 100, 235504 ( 2008).


[4] B.R. Lawan, E. R Fuller, J. mater. sci. 9 (1975) (2016).

[5] J. H Westbrook, H. Report 58-RL-2033 of the G. EResearch laboratory, USA, (1958).

[6] T.H. Freeda, C. Mahadevan, Proc. Intl. Workshop Prep. Charact. Tech. Imp. Single Crystals, 2001, p.350.

[7] K.B.R. Varma, K.V. Ramanaiah, K.V. Rao, Bull. Mater. Sci. 5 (1983) 39.

[8] P. Suryanarayana, H.N. Acharya, K. Rao, J. Mater. Sci. Lett. 3 (1984) 21.