Hi,
I have two samples containing 12-24% Ethanol (diluted by distilled water). I am wondering if these samples are frozen and then freeze dried, would that either decrease or get rid of the ethanol concentrations all together from sample?
Kind regards
Freeze-drying, also known as lyophilization, is a method commonly used to remove water from samples while preserving their structure and properties. However, freeze-drying is not typically used to remove ethanol or other solvents from samples.
Ethanol, with its relatively low freezing point compared to water, can remain in solution during the freezing step of the freeze-drying process. When the frozen sample is subjected to vacuum and slight heating during the sublimation step, water sublimes directly from ice to vapor, leaving behind the solid matrix of the sample. However, the ethanol, being a liquid at the processing conditions, would likely remain in the sample.
To remove ethanol from a solution, other techniques such as distillation or evaporation are typically used. These methods involve heating the solution to evaporate the ethanol and then condensing it back into a liquid form, leaving behind the sample. The effectiveness of these methods depends on factors such as the concentration of ethanol, the volume of the solution, and the desired level of ethanol removal.
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