Why glycol shows low freezing point? There are a lot of people think that a low freezing point of ethylene glycol rubber, the freezing point of antifreeze is ethylene glycol and water mixed in different proportions according to a post and in the freezing point, it is not true, due to changes in the mix after the cooling water vapor pressure , the freezing point will be significantly reduced. After I repeated the test: When ethylene glycol antifreeze and water accounting for 50%, the freezing temperature of -35 ℃: 40% ethylene glycol and 60% ethylene glycol antifreeze mixed into soft water prices, freezing temperatures to -25 ℃. This temperature is sufficient to meet any regional domestic automobile antifreeze antifreeze requirements, as set coolants do not have any problems. Glycol: but the method is not actually used in the industry a lot. At present, China's production of fermented with food still accounts for a large proportion of acetone. In the synthesis method cumene process is the main. Starch-containing agricultural by fermentation of acetone, butanol and ethanol mixture, the ratio of the three acetone: butanol: ethanol = 32: 56: 12 to 25: 70: 3 (weight ratio). Each producing acetone glycol coolants 1t, 11t about consumption of starch or 60-66t molasses. Cumene is acetone production route is the most economical way, at the same time get the phenol. The ratio between the two is that phenol: acetone = 1: 0.6 (by weight). Total phenol, phenol 100 000 t per tonne level devices consume propylene (90%) 590kg. Glycol antifreeze, ethylene glycol, Yantai, Qingdao, Wei Wei Connaught Chemical provided by Connaught Chemical Co. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) strong, credible, in Qingdao, Shandong and other chemical products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wei Connaught Chemical and you hand into the brilliant, for a better future!