The mutual solubility of n-hexane and DES was determined gravimetrically. DES 1 and DES 6 turned out to be sparsely soluble in n-hexane, where 6.73% and 2.41% of DES were dissolved in n-hexane, respectively. DES 10 and DES 11 were completely miscible with n-hexane. When adding n-hexan...