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International Journal of Optics
Volume 2010, Article ID 978763, 5 pages
Research Article

Effect of EDTA on the Growth Kinetics and Structural and Optical Properties of KDP Crystal

1Interdepartment of Physics, The University of Asia Pacific, Dhaka 1209, Bangladesh
2Department of Physics, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh

Received 6 September 2010; Accepted 13 December 2010

Academic Editor: Sang-Kook Han

Copyright © 2010 Anisur Rahman and Jiban Podder. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The solubility of potassium dihydrogen phosphate (KDP) was determined for five different temperatures. Metastable zone width of aqueous solutions of KDP saturated at different temperatures was determined by nucleation method in pure form and adding a well-known chelating agent ethylenediaminetetraacetic acid (0.5 mol% EDTA). The induction period šœ was measured, experiments were performed at selected degrees of supersaturation ( C / C āˆ— ), and the critical nucleation parameters like interfacial energy ( šœŽ ) were calculated, based on the classical theory of nucleation. The structural and optical properties of the grown crystals have been investigated. FTIR analysis has been carried out to characterize the grown crystals. Band gap has been calculated from transmission spectra.