Method for the preparation of 4-fluorocinnamic acid
If you want to make 4-fluorocinnamic acid, you need to understand the method. Take all the things first and prepare their utensils. Choose the appropriate agent, or the organic quality, or the inorganic product, and measure accurately without making mistakes.

In the kettle, put the things in sequence. Control its temperature, or slowly rise, or drop sharply, according to its nature. If the temperature is high, it will promote its transformation, and if the temperature is low, it will stabilize its quality. Adjust its pressure, or normal pressure, or increase or decrease, so that the things should be as desired.

During this period, observe its change, observe its color, smell its breath, and feel its temperature. If there is any abnormality, adjust it quickly. After it is finished, take it by method. Or filter, steam, or extract, to get the quality of 4-fluorocinnamic acid.

Retest its purity, analyze its properties, and if it does not meet the requirements, reproduce it. Following this path, 4-fluorocinnamic acid of good quality can be obtained.