Dear Jitkumar
There are four types of eutectic solvents:
Type I Eutectic (metal salt + organic salt (e.g. ZnCl2 + choline chloride)
Type II Eutectic (metal salt hydrate + organic salt (e.g. CoCl2*6H2O + choline chloride)
Type III Eutectic (organic salt + hydrogen bond donor (e.g. choline chloride + urea)
Type IV Eutectic (metal salt (hydrate) + hydrogen bond donor (e.g. ZnCl2 + urea)
Type I Eutectics also include widely studied & wide range of chlorometallate ionic liquids, such as the ever-popular imidazolium chloroaluminates which are based on mixtures of AlCl3 + 1-Ethyl-3-methylimidazolium chloride. This DES is able to dissolve many metal salts like lithium chloride (solubility 2.5 mol/L) and copper(II) oxide (solubility 0.12 mol/L). Organic compounds such as benzoic acid (solubility 0.82 mol/L) also have great solubility and this even includes cellulose. Compared to ordinary solvents, deep eutectic solvents are cheaper to make, much less toxic and sometimes biodegradable.
Best Regards
- Badges
- Science topic
- Similar topics
- Chemistry