Superior gallstone dissolubility and safety of tert-amyl ethyl ether over methyl-tertiary butyl ether

Figure 1 Comparison of characteristics and thermogravimetric analysis between methyl tertiary-butyl ether and tert-amyl ethyl ether. A: Comparison of basic chemical characteristics between methyl tertiary-butyl ether (MTBE) and tert-amyl ethyl ether (TAEE); B: Thermogravimetric analysis of MTBE and TAEE for the determination of thermal stability of each solvent. TGA of MTBE could not be measured because it quickly vaporized in the chamber due to the low boiling point (Left). By contrast, TAEE was found to be vaporized slowly as the temperature increased (Right). MTBE: Methyl tertiary-butyl ether; TAEE: Tert-amyl ethyl ether.