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[pic] Pt102 assignment Physical pharmacy part coefficient put up :Mohamed amgad ID:123451 for Dr .Ahmad Ismail INTRODUCTION General Definition of segmentation Coefficient: Partition coefficient is the ratio of the absorption of a chemical species adsorbed or dissolved by virtuoso phase to the concentration of the species in the other phase. The variance coefficient for each(prenominal) of the three perfect acidulouss, as defined in the equating: K = [org. acid in vegetable vegetable anoint] / [org. acid in water] (by mass) The effects of pH, temperature and ingrained acid concentration on the partition coefficients for short-chain extreme acid were measured in a unrefined oil / water system. Temperature of 25 70 C, pH set of 2.0 12.0 and acid concentration of 10-1000 mg/L were studied. Formic, Acetic and Propionic acids are subst dictates for microbial change show of oil reservoirs. The enormous office (85+%) of these acids was dissolved in the sedimentary phase. The log of the partition coefficient K increased approximately linearly with the number of degree centigrade atoms in the acid. Problems of native Acids: The presence of these acids target accelerate the rate of erosion of well tabular.

They also nominate in the souring of oil reservoirs due to their consumption by sulfate trim fine-tune bacteria (SRB). Also, these organisms can grow and block up the wiggle pores in the reservoir, hence create a loss of injectivity. perfect acids are readily available carbon sources for sulfate decrease bacteria (SRB). At utter pH crude oil may provide a source of original acids. Short-chain organic acids are favored substrates for transfiguration by SRB. Instrumentation: The compend for these organic acids was performed using the Capillary dielectrolysis Technique, which provides a quick outline of these low molecular organic species. Capillary Electrophoresis (CE): A separation technique in which a hear is introduced into a capillary...If you want to get a full essay, pose it on our website: Orderessay

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