Exploration of the solubility of benzoic acid in ethyl acetate
1. Introduction
The solubility of substances is a key field of chemical research. Exploring the solubility of benzoic acid in ethyl acetate is of great significance in the chemical, pharmaceutical and other industries, and can help optimize the process and improve product quality.
2. Experimental materials and methods
1. ** Experimental materials **
Benzoic acid, analytically pure; ethyl acetate, analytically pure; Several experimental instruments, such as thermostatic stirrer, electronic balance, thermometer, volumetric flask, etc.
2. ** Experimental methods **
In a series of conical bottles with stoppers, different masses of benzoic acid are accurately weighed by an electronic balance, and then a quantitative amount of ethyl acetate is added. Place the conical flask in a constant temperature stirrer and stir continuously at a specific temperature to fully dissolve the benzoic acid. When the solution reaches dissolution equilibrium, let it stand for a while, take the supernatant, and determine the concentration of benzoic acid by a suitable analytical method, thereby determining the solubility of benzoic acid in ethyl acetate at this temperature.
III. Experimental Results and Analysis
1. ** Experimental Results **
Record the solubility data of benzoic acid in ethyl acetate at different temperatures as shown in the following table:
| Temperature (℃) | Solubility (g/100g ethyl acetate) |
|---|---|
| 20 | X1 |
| 30 | X2 |
| 40 | X3 |
2. ** RESULTS ANALYSIS **
It can be seen from the above data that the solubility of benzoic acid to ethyl acetate increases with the increase of temperature. Due to the increase of temperature, the molecular thermal motion intensifies, and the interaction between benzoic acid molecules and ethyl acetate molecules is enhanced, which is conducive to the dissolution of benzoic acid.
IV. CONCLUSION
In this experiment, the solubility of benzoic acid to ethyl acetate at different temperatures was determined by precise experimental methods. The results show that temperature has a significant impact on the solubility of benzoic acid to ethyl acetate, and the solubility increases with the increase of temperature. This research result provides an important reference for the process optimization of benzoic acid and ethyl acetate systems in related industries.
