**5. CSC-temperature of ethanol-hexane mixed solution**

The Δδ values for individual protons of ethanol and hexane changed linearly to the higher field in the range from 0 to 60°C as shown in **Figure 2a** and **b**. Δδ for the OH proton changed 0.9 ppm during the temperature increase from 0 to 60°C, while those for CH2 and CH3 changed 0.1 ppm during the temperature increase from 0 to 60°C. Thus, the CSC-temperature under microwave irradiation was accurately determined using these relations for individual protons of a sample solution.
