Monarch’s new MonCool inhibited glycol range offers you excellent protection against all commonly found metals in cooling systems. Their molecular formulas are different; thus they have some different physical properties. Both uninhibited and inhibited ethylene (as well as propylene) glycols have been aged at temperatures up to 190/sup 0/C for over 2000 h continuously to date. Monarch Chemicals supplies both ethylene glycol and propylene glycol as well as the Moncool inhibited glycol range. How does this product ship? If the glycol is allowed to degrade, the corrosion and associated problems will be even more severe. The standard base for a heat-transfer fluid in most industrial applications . • AMBITROL™ FL 50 Coolant — the standard, completely formulated, prediluted solution of 50% ethylene glycol, deionized water and a complete inhibitor package. Only one lift gate fee is required per order. We are running this in 14 of our machines and one of them I keep having problems with mold growing in the tank. Slowly pour ethylene glycol. Dilute to your desired freeze point temperatures. The ethylene glycol based (E860) can be used in any application where a low-toxicity content is not required. For these reasons, inhibited glycols are the heat transfer fluid of choice for the HVAC industry. At 50 percent relative humidity, 100 percent uninhibited ethylene glycol will absorb 20 percent water at equilibrium. Dynalene triethylene glycol products are comprised of inhibited and uninhibited triethylene glycol solutions. Some inherent problems associated with using a pH meter to measure pH of an organic chemical are: Determining when to change out your uninhibited ethylene glycol by measuring pH to detect an increase in acidity is an unreliable measuring tool. Accor-ding to your freeze protection guide, you can fill the chiller with 35.5 percent uninhibited ethylene glycol and 64.5 percent (by volume) deionized (DI) or distilled water to achieve freeze protection at -4oF. Houghton Chemical formulates the WINTREX® product line, using ethylene glycol, in order to meet the needs of the HVAC-R industry. DOWFROST™ food grade propylene glycol heat transfer fluid includes a specially designed package of industrial corrosion inhibitor.. SDS. E860 . Propylene Glycol Vs. Inhibited ethylene glycol does share the same hygroscopic property as uninhibited ethylene glycol. Inhibited ethylene glycol is generally less expensive than inhibited propylene glycol, but is not acceptable in applications where there may be potential contact with food or potables. By closing this message or continuing to use our site, you agree to the use of cookies. This concentration only allows freeze protection down to 7oF (-14oC). The dissociation of a compound can vary dramatically between an aqueous and organic chemical. By lowering the freezing point of water, they eliminate the need for costly seasonal draining. Tell me how we can improve. Our line of triethylene glycol heat transfer fluids provides users with stable, safe, and efficient products for Uninhibited ethylene glycol, like other glycols, is hygroscopic; it will absorb moisture from its environment. Dynalene offers pure propylene glycol in both technical grade and food grade. Ethylene glycol is a molecule having two hydroxyl groups on a 2 carbon chain, making it less viscous and providing slightly better heat transfer properties than propylene glycol. Normal inhibited glycol degrades more rapidly when used above 250°F and produce acids that can be detrimental to the system. Hydronic fluids are heat transfer fluids composed of three key ingredients: Water, to provide heat transfer. Ethylene glycol has a melting point of 197.3 °C. Clear, Colorless and practically odorless liquid , Ethylene Glycol is completely soluble in water. The external buffer solutions (for probe calibration) are aqueous solutions. -60 degrees F to 250 degrees F. ChemWorld Corrosion Inhibited Ethylene Glycol - 5 gallons. Copyright ©2021. Also, once metal ions are in solution, they can attach themselves to oppositely charged metals to form a galvanic corrosion cell. If uninhibited ethylene glycol is not allowed to degrade (using inhibitors), then money is saved by less frequent maintenance to the cooling loop system (labor, parts and lost production costs) and change out of the fluid (labor, replacement fluid and lost production costs). Long term outcomes may include kidney failure and brain damage. Ethylene Glycol: Ethylene glycol is toxic. Ingestion of Ethylene Glycol can result in death. Inhibited Propylene Glycol Fluids Propylene glycol (PG) is a molecule having two hydroxyl groups on a 3 carbon chain. The above research indicates that uninhibited ethylene glycol does not begin to degrade and become acidic until after three weeks under extreme conditions (212oF [100oC] and oxygen bubbling into the uninhibited ethylene glycol solution). Ethylene Glycol is widely used as an antifreeze and automotive heat transfer fluid. How do I know which glycol to use? Ethylene Glycol should never be used in food and beverage facilities. The effectiveness of Inhibited Monoethylene Glycol in preventing corrosion has been proven in extensive laboratory and in actual service tests. Contact us for help with your applications and for pricing and availability. Toxicity and death may occur after drinking even a small amount. C 2 H 4 O + H 2 O → HO−CH 2 CH 2 −OH. However, water absorption can potentially cause many problems in chiller applications. A pH reading of an uninhibited ethylene glycol/water solution becomes less accurate with an increase in the uninhibited ethylene glycol concentration. There are many ways that the surrounding air can find its way into a closed-loop system. Ethylene glycol has a melting point of 197.3 °C. These inhibited glycol All Rights Reserved BNP Media. Most uninhibited ethylene glycol manufacturers do not specify a pH for this chemical; they state not applicable or not available (NA) on the product data sheet or material safety data sheet (MSDS). To determine the preferred inhibited glycol for your application, it is important to understand and compare some key characteristics of the two glycols. It is design for antifreeze or boiler applications and will provide freeze protection and corrosion protect against iron, aluminum, and … Technical Data Sheet. Only 55 gallon drums and totes in stock. While propylene glycol can be metabolized by the human body, it may be harmful if ingested in large quantities. Whereas ethylene glycol is highly toxic and may be fatal if ingested, propylene glycol is considered practically non-toxic and generally regarded as safe. But, by diluting with water, is one measuring the pH of the added water or the pH of uninhibited ethylene glycol/water solution? However, if ethylene glycol is involved, I suspect it does not harm the aircraft components because of a combination of one or more of the following: 1) the temperature is not elevated (elevated temperatures can cause decomposition and acid formation in uninhibited ethylene glycol solutions) 2) the de-icing fluids contain corrosion inhibitors Usually, their recommendations are based on a two-week chemical compatibility study exposing various metals to uninhibited ethylene glycol at various temperatures. If you require a lift gate for delivery, click here to add our lift gate option to your order. If possible, open the container of ethylene glycol in a low humidity environment. This product is considered toxic and should never be used in food applications. Many users of uninhibited ethylene glycol are unaware of its hygroscopic property and often leave the cover off the container. The amount of water absorbed from uninhibited ethylene glycol's environment is proportional to the percent relative humidity. Both products are two chemical compounds used as some low temperature heat transfer fluids. Containers of ethylene glycol should be airtight. A gas chromatography/mass spectrometer (GC/Mass Spec) is used to detect organic compounds in a solution. Later symptoms may include a decreased level of consciousness, headache, and seizures. Difference Between Ethylene Glycol and Propylene Glycol Definition. For more information from Thermo Scientific, call (800) 258-0830, visit www.thermo.com/tc or visit sales.tc.us@thermo.com. Also, air can enter when the cap to the tank is removed to visually inspect the fluid level and during subsequent top-offs with uninhibited ethylene glycol. 1 - SDS Chemworld UnInhibited Ethylene Glycol pdf file ($0.00) Color*: Qty: Description ... We have a question about the inhibited ethylene glycol. Propylene Glycol: Propylene Glycol is a synthetic organic compound that has the chemical formula C 3 H 8 O 2. Each hydroxyl group is separately attached to one carbon atom. Ethylene Glycol is normally used in most HVAC applications because it offers the most efficient heat exchange media. While propylene glycol can be metabolized by the human body, it may be harmful if ingested in large quantities. By closing this message or continuing to use our site, you agree to the use of cookies. ethylene glycol might be a solution. Propylene Glocol Vs Ethylene Glycol. Fremont 9132 : Fremont 9132 is inhibited ethylene glycol manufactured by Fremont Industries, Inc available in 100% and Premix solutions. Dow Chemical Co., Midland, Mich., distributes a technical bulletin entitled, "Acidic Thermal Degradation of Ethylene Glycol and Propylene Glycol.". You can read more about inhibited glycol vs. uninhibited glycol here. To be safe, you fill the chiller with 38.5 percent uninhibited ethylene glycol and 61.5 percent DI or distilled water to achieve freeze protection down to -10oF (-23oC). Preventative steps must be followed to ensure minimal exposure to air. Dynalene triethylene glycol products are comprised of inhibited and uninhibited triethylene glycol solutions. Mid South Chemical sells the best heat transfer fluids (inhibited and uninhibited glycols) Inhibited Ethylene Glycol (-60⁰F to 250⁰F) Uninhibited Ethylene Glycol Inhibited … Air also enters the chiller via any left open valves or any leaks (loose hose clamps) in the system. 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Active strength ethylene or propylene glycol can save money over the lifetime of the system chemicals supplies both glycol.