Isopropanol: Basic information folding Edit Alias ??this paragraph: dimethyl methanol; 2-propanol, the abbreviation: IPA English Name: iso-Propyl alcohol; isopropanol; Dimethylcarbinol; 2-Propanol IPA known formula: C3H8O; (CH3) 2CHOH molecular weight: 60.06 which is n-propanol isomers of CH3-CH2-CH2OH. Appearance: colorless transparent liquid, smell like a mixture of ethanol and acetone. Melting point (℃): -88.5 Boiling point (℃): 82.3 Relative density (water = 1): 0.79 Relative vapor density (air = 1): 2.07 saturated vapor pressure (kPa): 4.40 (20 ℃) ??heat of combustion (kJ / mol ): 1984.7 critical temperature (℃): 275.2 critical pressure (MPa): 4.76 logarithm of the octanol / water partition coefficient: <0.28 Flash point (℃): 12 Ignition Temperature (℃): 399 Upper explosive limit% (V / V): 12.7 lower explosive limit% (V / V): 2.0 Solubility: soluble in water, alcohol, ether, benzene, chloroform and most organic solvents. Main purpose: It is an important chemical products and raw materials. Mainly used in pharmaceutical, cosmetics, plastics, fragrances, paint and so on. I isopropyl alcohol: 95% of propylene and isopropanol excess water as raw materials, in the presence of isopropanol antifreeze tungsten-based catalysts (such as tungsten silicate), carried out at 240 ~ 270 ℃, under the conditions of 14.7 ~ 19.6MPa Reaction: income isopropanol, refined purity of 99.9%. 6. First the excess propylene and water were pressurized to 2MPa isopropanol manufacturers, preheated to 200 ℃. Then mixed, fed to the reactor the reaction, the catalyst is phosphoric acid celite. Reaction temperature 195 ℃, pressure maintenance 2MPa industrial isopropanol, after the completion of the reaction, first by the gas and then subjected to high-pressure vapor-liquid separator is cooled and condensed, the unreacted gas, can be recycled. The resulting liquid is a lower concentration of crude isopropyl alcohol. After the second distillation concentration of 95%, and then extracted with benzene concentrate up to 99%. 6. acetone hydrogenation of isopropanol. The method for the rise after 2005, mainly due to price upside acetone and isopropyl alcohol (isopropanol traditionally one consumer use is the dehydrogenation of acetone). Isopropanol antifreeze | Wei Connaught Chemical (certified) | isopropanol provided by Solutia Chemical Co., Ltd. Qingdao Wei. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) is Qingdao, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Wei Connaught Chemical leadership with the staff warmly welcome all inquiries negotiations to create great promise a better future for the chemical.