How to completely remove water from Isopropyl alcohol? I have isopropyl alcohol with 3% moisture. I need to remove water completely. Due to azeotrope with water, distillation not possible. I tried salt out process (addition of NaCl). But no effect on 3% water. However it works only on 70% IPA concentration increased to 80% only. Further removal of water not possible. Any other simple procedure for complete removal of water from IPA?
Try to use CaO. :
CaO+ H2O gives Ca(OH)2
If you have only a small content of water It should work.
Thank you SILAS DERENZO sir. I tried already. Water content decreases from 2.85 to 2.3 % only. Also the solution pH changed into basic.
If you have such low decrease It should bê due to the quantity of CaO not sufficient. Check the necessary quantity AND If It is CaO and not Cá(OH)2.
OK sir. Thank you SILAS DERENZO i will check and let you know
In ancient times
1) I did some exploratory experiments using glycerol help eparate water from ethanol. I do not remember the results.
2) I used to a K-LTA (It is a comercial potassium exchanged Na-A (A zeolite -> now LTA). Some coleagues have been using this zeolite to dry solvents in laboratory scale. I think it is easy to buy in Sigma-Aldrich-Merck for example.
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