The method of making glycolic acid at home
If you want to make glycolic acid at home, you need to prepare a number of things and understand the method.
Prepare raw materials first, anhydrous oxalic acid and anhydrous methanol are essential. The ratio of pure oxalic acid and pure methanol is very important. Usually oxalic acid and methanol are mixed in a certain proportion, and this ratio depends on the specific reaction requirements. Generally, an appropriate amount of oxalic acid to a sufficient amount of methanol can make the reaction smooth.
Secondary equipment, a clean flask is required, and it needs to be heat-resistant and corrosion-resistant to withstand the reaction. Another condenser is prepared to make the steam cool and reflux, so that it does not escape and dissipate, and to ensure the efficient utilization of raw materials. A stirrer is also indispensable, so that the raw materials are mixed evenly and the reaction is fully promoted. When
is prepared, pour anhydrous oxalic acid and anhydrous methanol slowly into the flask. Ignite and heat to raise the temperature gradually. When heating, when the temperature is moderately controlled, do not overheat too quickly to prevent the reaction from getting out of control. At the same time, turn on the stirrer to make the two blend seamlessly. During the reaction, the liquid in the flask can be seen turning over and steam rising. The steam is cooled through a condenser, reformed into a liquid, and returned to the flask.
After the reaction is completed, let the flask stand to stratify the product. Carefully separate to obtain a solution containing glycolic acid. After purification, such as distillation, crystallization, etc., remove impurities and keep pure, and finally obtain pure glycolic acid.
This preparation method requires careful operation, strict adherence to procedures, and safety to ensure that this homemade glycolic acid can be achieved.