Method of steaming ethyl acetate
To steam ethyl acetate, there are various methods. First, you can use heating. Prepare a round-bottomed flask, pour the liquid containing ethyl acetate into it, and connect it with a distillation head, a condenser tube and a receiver. Slowly heat the flask with an alcohol lamp or an electric heating jacket to make the liquid boil gradually. Ethyl acetate has a low boiling point. It is first vaporized into steam when heated, cooled by a condenser tube, and then returned to liquid. It drops into the receiver, and then separates from the residue.
Second, the method of vacuum distillation is also good. This is especially suitable when ethyl acetate is easily decomposed when heated or needs low-temperature distillation. The device is as before, and only a vacuum pump is added to reduce the pressure of the system. When the pressure is reduced, the boiling point of ethyl acetate also drops, which can be separated at a lower temperature to avoid the risk of high temperature decomposition.
Third, the method of fractionation can be used. If the boiling point of ethyl acetate and other components in the liquid is similar, the fractionation column is indispensable. The mixed liquid is put into the fractionation device, heated and vaporized, and the steam passes through the fractionation column. Different components are condensed and vaporized in the column for many times according to the difference in boiling point, so that ethyl acetate can be separated from other substances more purely.
When operating, be sure to pay attention to safety. Ethyl acetate is flammable, and the heating periphery should not be close to an open flame, and it should be carried out in a well-ventilated place to avoid the risk of its vapor accumulation. At the same time, the temperature is precisely controlled, and the boiling point of ethyl acetate and the characteristics of the selected method are adjusted to a suitable temperature