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Classification of DESs.
| Type of DES | General Formula | Terms | Example |
|---|---|---|---|
| I | R+ A− + cMClx | M = In, Zn, Fe, Al, Sn | ChCl + SnCl2 |
| II | R+A− + cMClx.cH2O | M = Ni, Cr, Fe, Cu | ChCl + FeCl3·6H2O |
| III | R+ A− + cRW | W = OH, CONH2, COOH | ChCl + Urea |
| IV | MClx + cRW | M = Al, Zn and W = CONH2, OH |
ZnCl2 + Urea |
| V | HBD + HBA | HBD = hydrogen bond donor HBA = hydrogen bond acceptor |
Thymol + Menthol |
