EtOH can be distilled even without a laboratory. Are you experiencing some specific problems?
Sir.
We are using EtOH in PL (Photoluminescence) study as solvent. But we got some peak at near 420nm when we excited at 365nm. So just i want to distill it and use as a solvent.@jukka Salminen
Try first with a rotary evaporator and if that does not help try with a more efficient column distillation. Recycling solvents is routine in industry but some azeotropes may make it difficult. https://en.wikipedia.org/wiki/Azeotrope_tables#Binary_azeotropes_of_ethanol,_b.p.=78.4_%C2%B0C
We can purify diethyl ether from its most usual impurities by shaking with a solution of 3 g FeSO4 + 3 cm3 conc. H2SO4 + 55 cm3 H2O, and/or with 10 wt% Na2SO3 aq. ― approx. 1 vol% washing solution : ether, repeatedly. That should be followed by washing with distilled water, drying with anhydrous CaCl2 (1 day), and filtering. Alternatively, it can be dried with activated anhydrous alumina or with 4Å molecular sieves. Further purification (if required) can be achieved by distillation, possibly over sodium wire or P2O5.
- Badges
- Science topic