When ethylene glycol is used as a refrigerant carrier should be noted: 1. Changes in the concentration of ethylene glycol as the freezing point of the aqueous solution varies less than 60% when the concentration of the aqueous solution of ethylene glycol concentration in the freezing point depression, but After concentration exceeding 60%, with the glycol concentration, its freezing point upward trend, the viscosity will increase as the concentration increases. When the concentration reached 99.9 percent, rising to its freezing point -13.2 ℃, which is concentrated antifreeze (antifreeze liquor) an important reason why can not be directly used, must draw the user's attention. 2 glycol having a hydroxyl group, a long work at 80 degrees -90 degrees Celsius, will first be oxidized to ethylene glycol, glycolic acid, and then oxidized to the acid, i.e., acetic acid (oxalic acid) containing two carboxyl groups. Oxalic acid and its byproducts will first affect the central nervous system, followed by cardiac bulk glycol, and then affect the kidneys. If there is no proper treatment of ethylene glycol plant, excessive intake of ethylene glycol can cause death. Glycol oxalic acid, causing corrosion of the equipment that make them leak. Thus, in the preparation of antifreeze, you must also have a preservative to prevent the formation of iron and steel, aluminum, corrosion and scale. 3 glycol itself is relatively active substance readily polymerized into a polymer, the polymer is further oxidized into organic acids (commonly referred to as sludge) is formed of a very sticky material, easy to scale after deposition; another B diol reacts with oxygen to produce a small amount of formic acid and ethylene glycol is a colorless, slightly viscous liquid, boiling point 197.4 ℃, freezing point -11.5 ℃, can be mixed with water in any ratio. Due to changes in vapor pressure of the cooling water, the freezing point significantly reduced mixing. Degree of reduction within a certain range with the content of the ethylene glycol increases. When the content of ethylene glycol is 60%, the freezing point can be reduced to -48.3 ℃, this limit is exceeded effects of ethylene glycol, but the freezing point to rise. Glycol antifreeze easy to generate, in use, the acidic substance, a pair of metal corrosion. Glycol toxic, but because of its high boiling point, does not produce vapor being inhaled and cause poisoning. Glycol absorbent, storage containers should be sealed to prevent water overflow after. Since the boiling point of water is lower than ethylene glycol, the use of the water is evaporated, when a lack of coolant, just add water purifier on the line. Wei Connaught Chemical, Qingdao Chemicals Factory | glycol plant | Jimo glycol provided by Wei Connaught Chemical. Search for "phenol, aniline, ethylenediamine, n-butanol, isobutanol, n-propanol, isopropanol, methanol," fly suppliers, network operators choose to have a full alliance Certified: Qingdao Wei Connaught Chemical Co. ( www.qdweinuo.com), trustworthiness and reliability, "business alliance customer service" on page now click on live chat with us now!