30 Ethylene Glycol Freezing Point

Pure water freezes at 32° F, but a 60% solution of DOWFROST propylene glycol pushes the freezing point down to -threescore° F. While the freezing point of pure glycol is only -39° F, the synergy between glycol and water results in a much lower freezing point. This is very important for closed-loop systems that may exist exposed to freezing conditions.

What is the deviation between freeze protection and burst protection? As the temperature of the h2o-glycol solution falls, the h2o will begin to freeze and "precipitate" out of the solution, causing the fluid to become slushy. Nigh systems can handle short periods of slush if the viscosity remains low. The "slush" menstruation is termed burst protection. As the temperature continues to decrease, the glycol begins to freeze. Unlike water, which expands when information technology freezes, glycol contracts when information technology freezes. Therefore, when the glycol freezes, the volume in the system really decreases. With freeze protection, there will not be any freezing of h2o or glycol in the mixture.

Relying on DOWFROST propylene glycol in your airtight-loop h2o system means you're relying on the best freeze protection possible. DOWFROST Heat Transfer Fluid is the just inhibited glycol fabricated with DOW PuraGuard Propylene Glycol USP/EP, a pharmaceutical grade of monopropylene glycol with specified purity greater than 99.8%. By contrast, competitor products are frequently made from recycled or industrial form glycols or from glycols derived from bio-renewable sources. These glycols typically do non come across USP specifications, as they contain pregnant amounts of impurities like ethylene glycol or diethylene glycol, which at sure levels affect toxicity. They also may contain sure other impurities, such as dioxolanes, which impart strong odors and crusade excessive foam. A neat manner to prolong fluid lifetime and to lower your cost of buying is to use DOWFROST heat-transfer fluid, because it's made with the highest industry purity propylene glycol combined with long-lasting and food-safe corrosion inhibitors.

Contact Lentus today to find out how yous can take reward of the superior quality just found in DOWFROST propylene glycol heat-transfer fluid.