College Essay Samples: Synthesis

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Â Â Â Â Â Â Â Â Â Â Â The principle of recrystallization is quite simple (refer to figure 6 on the next page).Â The unattackable to be purified is redissolved in an suppress solution and allowed to reprecipitate or recrystallize more slowly thus preventing the entrapment of impurities in the crystal lattice.
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Â Â Â Â Â Â Â Â Â Â Â The solubility of a solute in a resolvent is a function not only of the chemical structure of the deuce components, but also of the temperature.Â Do you remember that temperature is a barroom of a molecules kinetic energy?Â unremarkably the solubility of a solid in a molten increases with temperature, and, in some instances, the effect may be truly marked (Table below).Â This phenomenon is of great importance to the chemist because it is the basis for the refinement of solids by recrystallization.

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Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SOLUBILITY OF SUCCINIC ACID WITH TEMPERATURE
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Â Â Â Â Â Â Â Â Â Â Â If a solid is dissolved in a caustic solvent and the solution is cooled, the saturation point may be reached.Â whatever subsequent cooling of the solvent results in the separation of solid by recrystallization.Â If the original material contains any foreign matter, a highly specific purification procedure using an appropriate solvent can be devised.Â Contaminants that are insoluble in the solvent can be separated by filtration of the hot solution; small amounts of those that are highly soluble in the solvent will remain in solution as the desired product crystals are formed and removed by filtration.Â Occasionally it is necessary to...If you want to get a salutary essay, order it on our website: Orderessay

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College Essay Samples

Monday, March 4, 2013

Synthesis

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