3.2.2. Effect of Alcohol on Azeotropy

An azeotropic experimental device is shown in Figure 1. The azeotropic experiment primarily included the binary mixed system and ternary mixed system. The specific experimental scheme is presented in Table 3. The ratio of organic compound/water/alcohol was determined based on the optimal ratio of organic compound/water and the optimal ratio of water/alcohol obtained from previous studies on azeotropes of binary systems. The temperature measurement probes were placed in the upper, middle, and lower positions of the solution; subsequently, a condensate pipe was connected, and the solution was heated to 140 ◦C in an oil bath. The temperature reading was recorded every minute. Each experimental group was repeated thrice to avoid experimental errors.
