Guangzhou Wong Road, Chemical Co., Ltd. is a manufacturer of industrial-grade ethylene glycol, ethylene glycol mainly engaged in imported green polyester grade ethylene glycol oil level. Antifreeze is dedicated 99.9% high purity ethylene and other chemical raw materials. By professional manufacturer direct environmental polyester grade ethylene glycol cash supply stability, quality assurance; how much price advantage polyester grade ethylene glycol, shelf. One kind of raw material of polyester grade ethylene glycol antifreeze Which is good, colorless, slightly viscous liquid boiling point is 173.6 ℃, can be mixed with water in any proportion. Due to changes in the vapor pressure of the cooling water, the freezing point significantly reduced after mixing. Degree of reduction within a certain range with the content of the ethylene glycol increases. When the content of ethylene glycol was 68%, the freezing point can be lowered to - 50 ℃, exceeds this limit, the freezing point but to rise. Glycol antifreeze easy to generate acidic substances in use, have a corrosive effect on metal. Therefore, you should add the appropriate amount of disodium hydrogen phosphate, etc. to prevent corrosion. Glycol nature: ethylene glycol at room temperature is a colorless, odorless, viscous liquid with a sweet taste. The proportion of 1.1132, boiling point 197.2 ℃, freezing point -12.6 ℃, flash point 116 ℃, ignition point 412 ℃, explosion limit upper limit of 3.2% ~ 15.3% (volume). Hygroscopic, miscible with water, ethanol and acetone, can greatly reduce the freezing point of water, slightly soluble in ether. Chinese name English name Ethylene glycol ethylene glycol nickname, EG, glycol antifreeze, MEG formula (CH2OH) 2 molecular 62.068CAS registration number 107-21-1EINECS Accession No. 203-473-3 melting point -12.6 ℃ Boiling point 197.3 ℃ water-soluble and water-miscible Density 1.1155 (20 ℃) ??Colorless dangerous flash point 111.1 ℃ description Harmful if swallowed critical pressure 7699KPa critical temperature 372 ℃℃ eccentric critical factor 0.27 molar volume 186C3 ??/ mol [1] polyester grade ethylene prices _ Wang Lu Da Chemical (Online) _ polyester grade ethylene glycol from the Wang Zhongshan Road, Guangzhou Chemical Co., Ltd. to provide. Guangzhou Wong Road, Chemical Co., Ltd. (www.wangluda.com) (www.wangluda.com) is a leader in Guangzhou, cosmetic raw materials, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. In the busy road of Chemical leadership with the staff warmly welcome all inquiries negotiations to create the prosperous road of chemical better future.