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Abstract
in the present work the effect of some different extracts of natural plants on the rate of dissolution and crystallization of calcium oxalate crystals was investigated
the first chapter contains a general introduction .the nucleation crystal growth and cluster formation as will as crystal dissolution and mechanism ,Inhibition and effect of additives are discussed .the effect of some cations and anions on the rate dissolution crystallization and precipitation of calcium oxalate was examined
the second chapter includes the experimental concerned with the preparation of COM seeds crystals measurements of surface area .X-ray diffraction dissolution analytical procedures and method of extraction and isolation of different extracts as (aquous –alcoholic cloroformic )from some Natural plants which have medicinal properties
the third chapter is devoted to results and their dissolution it is subdivided into three main section A, B and C