EFFECT OF LEAD CHLORIDE ON THE GROWTH AND SURFACE PROPERTIES OF POTASSIUM CHLORIDE CRYSTALS FROM AQUEOUS SOLUTIONS

Jiban Podder, Richard William Evitts () and Robert William Besant
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Jiban Podder: Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
Richard William Evitts: Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
Robert William Besant: Department of Mechanical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada

Surface Review and Letters (SRL), 2014, vol. 21, issue 04, 1-8

Abstract: Pure potassium chloride (KCl) and lead chloride (PbCl2)-dopedKClcrystals were grown from saturated aqueous solutions by a solvent evaporation process. The effects ofPb2+on the surface morphology, structural and mechanical properties ofKClcrystal were investigated. The surface morphology of the cubic structured crystals was studied by scanning electron microscopy (SEM), X-ray diffraction and the elemental mappings at the microstructural level were determined by energy dispersive X-ray (EDX) spectroscopy. The mass growth rate was found to decrease when thePb2+ions were present and the volume growth flux was also found to decrease with time and initial concentration of impurity. A Vickers micro-hardness study shows thatPb-dopedKClcrystals are harder than pureKClcrystals.

Keywords: Potassium chloride; lead chloride; surface morphology; X-ray diffraction; micro-hardness (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1142/S0218625X14500449

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