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13Â¥2016-01-17 07:02:39
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14Â¥2016-01-17 11:37:26
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https://en.wikipedia.org/wiki/Phase-transfer_catalyst
In chemistry, a phase-transfer catalyst or PTC is a catalyst that facilitates the migration of a reactant from one phase into another phase where reaction occurs. Phase-transfer catalysis is a special form of heterogeneous catalysis. Ionic reactants are often soluble in an aqueous phase but insoluble in an organic phase in the absence of the phase-transfer catalyst. The catalyst functions like a detergent for solubilizing the salts into the organic phase. Phase-transfer catalysis refers to the acceleration of the reaction upon the addition of the phase-transfer catalyst.
15Â¥2016-01-19 19:28:58
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17Â¥2016-01-20 09:57:20
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18Â¥2016-01-22 16:51:44
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19Â¥2016-01-24 10:47:18
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