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Interaction between kaolin (particle size 53 and 106 μm) and urea was studied by infrared spectroscopy and powder X-ray diffraction. Interaction was found to be dependent on the particle size of kaolin raw material. Nature of interaction achieved through the formation of hydrogen bonds between urea and both AlOH and Si-O surface of kaolinite. Effect of temperature on equilibrium adsorption of methylene blue (MB) from aqueous solution using kaolin also studied, the results were analyzed by Langmuir and frendlich isotherms. Thermodynamic parameters such as ΔG, ΔH and ΔS were calculated. Results suggested that the MB adsorption on kaolin was spontaneous and exothermic process.

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The veterinary medicine isophen was used in this study. Isophen contains phenylbutazone as active material .Numbers of samples of isophen were prepared and were determined absorbance were determined and comparison subjected to radiation for different periods (1 ,2, 3, 4, 5) hrs. the Maximum absorbance were determined and compression Maximum absorbance's Study are performed. And ensure that the impact of irradiation on the active ingredient in the medication. The results reveal that has been reached that there is significant impact of irradiation as well as the time of irradiation on the decomposition of the active ingredient in the medication was found that with the continuation of the time of irradiation increases decomposition.