Today, there is a substance named 4-chlorocinnamic acid, and we want to know its boiling point. This substance is related to the field of chemical industry, and its properties and boiling are all important to researchers.

Or look for it in ancient books, read all kinds of records carefully, and explore its physical properties. Or test it through experiments, prepare an exquisite device, and follow strict rules. In a sealed device, adjust the temperature and observe it, wait for it to boil, and record the number of its temperature.

However, the way to find it is not overnight. The number contained in the ancient books varies depending on the source; the test of the experiment also varies depending on the difference of the device and the special method. Therefore, it is necessary to refer to multiple schools and carefully distinguish them before obtaining the exact number to clarify the true boiling point of 4-chlorocinnamic acid.