Phenol is found in the history of the German chemist Runge (Runge F) in 1834 found in coal tar Yanshan Petrochemical phenol, is also known as carbolic acid (Carbolic acid). Phenol first notorious thanks to the famous British doctor Riester. Riester found the cause of death after surgery the patient is most festering wound infection. Under accidentally sprayed with a solution of phenol dilute surgical instruments as well as the doctor's hands phenol, the results significantly reduce the patient's infection. This finding phenol become a powerful surgical disinfectant. Riester therefore known as "the father of surgical sterilization." Other conditions are the same as different liquids, evaporation speed is not the same. This is due to the different size of cohesion between the molecules of the liquid caused. For example, phenol offer great cohesion between the molecules of mercury, only a handful of the kinetic energy of the molecule is large enough to escape from the liquid phenol use this liquid evaporates very slowly. While others, such as the cohesion of liquid ether molecules small enough to escape the liquid molecules in larger quantities, so get on the fast evaporation. In the evaporation process, evaporation of the liquid so that there is not only an endothermic cooling effect of the surrounding objects. When the liquid evaporates, and ran out of the molecules in the liquid to the liquid surface layer of molecules overcome their gravitational and acting. These molecules can do work, because they have a sufficiently large kinetic energy. Larger than the average kinetic energy of molecules flying level, flight speed large molecules out, and the average kinetic energy of the liquid retained inside the molecule has become smaller. Therefore, in the evaporation process, such as the outside world does not add energy to the liquid, the liquid temperature will drop. In this case, it is necessary to absorb heat through heat transfer mode from surrounding objects, and then make the object to cool surroundings. Xiang dry chemical (Figure), shelf phenol, phenol Binzhou stem from Jinan Cheung Chemical Limited. Jinan Cheung Dry Chemical Co. (www.xiangqianhuagong.com) (http://www.dilunyierchun.com) adhere to the "people-oriented" business philosophy, has a professional staff, and strive to provide the best products and services to contribute to the community and welcome new and old customers to visit us and sincere cooperation for a better future. Xiang dry chemical - your trusted friend, Company Address: Industrial Road chemical market, Contact: Mr. You can also access (http://www.dilunyierchun.com/supply_details_40807625.html), for more information about the company.