On the Method of Benzaldehyde to Cinnamic Acid
In the past, there were wise men who wanted to explore the wonderful method of making cinnamic acid from benzaldehyde. In the room, place various utensils and prepare benzaldehyde, acetic anhydride and other things.

At the beginning, take an appropriate amount of benzaldehyde and pour it into the kettle. Its taste is fragrant, and the color is clear and transparent. Then add acetic anhydride in a precise amount, and the two blend. Add a little anhydrous sodium acetate, which is the medium to promote its transformation.

Then start a fire and warm the kettle. The fire is soft and stable, and the liquid in the kettle is gradually boiling, moving and surging, and the molecules in it collide and combine with each other. Slowly and anxious, only the eyes can not take their eyes off, observing its color change and temperature shift.

After a while, the contents of the kettle gradually change, and the color is slightly darker. When it is finished, remove the kettle from the fire and let it stand in the case. Then use a delicate method to analyze its products. First, it is washed with water, removed from its impurities, and then distilled and crystallized, and finally obtained cinnamic acid. Its shape is like a crystal, pure in quality and good in color.

This method also requires careful observation of all situations, timely temperature control, and accurate measurement. Only then can we obtain the best product of cinnamic acid for the needs of medicine and fragrance industries.