How to remove 3%of the water in acetic acid

Pure acetic acid, it is solid ~~~~~~~~ Try it

Is it not possible to distille directly

Tuck dehydration is available

Think of junior high school chemical content, add an appropriate amount of copper sulfate to try, absorb water to generate five water sulfate

Baidu Library -Study on the separation of water acetic acid, there is a graduation thesis, which is more comprehensive and hopes to help you.

The principle of reacting the acetic acid with acetic acid and water reactions, adding a slightly excessive amount of vinegar anhydride to the crude acetic acid after a period of time distillation, using the boiling point difference to separate

Membrane separation.EssenceEssenceHahaha

Use molecular sieve dehydration to make a small test

If it is industrial production, 3%of the water is not small, and the distillation may be a method with high operating costs and low efficiency, but freezing and cooling are not a good way. It is also high to maintain low temperature.Cost operations, and water is dissolved with acetic acid, low temperature separation is a difficult point.
It is recommended to use a solvent with distillation, benzene or cyclopanane as a solvent, and separate the water at a lower temperature.This needs to be calculated through data to know whether it is feasible.

If you can get vinegar anhydride and add a slightly excessive vinegar anhydride, you can consume excess water, which is the easiest way.

In addition, you can use active silicone or alumina to absorb trace water, which is also a method of reference.

If a laboratory is drawn a small amount of aquatic acetic acid, you can use the activated molecular sieve to suck water.

Pure acetic acid is frozen into ice crystals when it is lower than the melting point. Can it be cooled?