Why is ice cold solvent used in filtration?

Thread starter evry190
Start date Feb 7, 2010
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Cold Solvent

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Ice cold solvents are used in filtration to enhance the efficiency of the process by reducing the solubility of the desired product, which helps to precipitate it out more effectively. The lower temperature decreases the solubility of compounds, allowing for better separation during vacuum filtration. Using ice cold alcohol, for example, ensures that impurities remain dissolved while the target compound crystallizes. This technique ultimately leads to a purer product and improves yield. Understanding the solubility of the product at varying temperatures is crucial for optimizing filtration results.

Feb 7, 2010

evry190

Hi I was just wondering why we use ice cold solvent when performing a filtration before vacuum filtration? What exactly does it do? Like ice cold alcohol? I know it allows filtration to be more efficient, but how exactly?

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Feb 8, 2010

chemisttree

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Look into the solubility of your product in the filtration solvent at different temperatures...

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