Ethylene glycol and propylene glycol are organic compounds with alcohol functional groups. Since ethylene glycol can cause damage to the heart, nervous system and kidneys through prolonged exposure, you should consider propylene glycol your only option. Kal Row Member Posts: 1,519. Ethylene glycol can facilitate convective heat transfer in automobiles and liquid cooled computers. Propylene glycol is used in antifreeze because, like ethylene glycol, it lowers the freezing point of water by disrupting the formation of ice crystals. Drain the coolant. Ethylene glycol can be found in highly concentrated amounts in automotive antifreeze and some windshield de-icing products and in small amounts in household products such as printer ink, interior and exterior paint, spackle, etc. On … Step 1. It can even cause the heart to stop. The melting point of propylene glycol is about -59 o C. Since the vapour pressure of propylene glycol is negligible, it does not evaporate at a considerable degree. Ethylene glycol and propylene glycol are the major constituents of antifreeze. It is viscous than water; it is considered as a syrup since it flows very slowly. So figure if they use 5% of that stuff it's equal to 10% PG. Rather the term organic compound refers to the fact that it contains carbon. A balanced inhibitor system, to protect common metals of construction. If so got any picks and do you know how long it mixxed. Antifreeze can have two active ingredients: either ethylene glycol or propylene glycol. Ethylene Glycol: Ethylene glycol is mainly used in antifreeze formulations and as a raw material in the manufacturing of polyesters such as polyethylene terephthalate (PET) in plastic industry. The junction of these two determines the percent strength of a known Glycol. Here it shows that the solution could be 30% Propylene Glycol. When it is mixed with water, it disturbs the formation of ice. Propylene Glycol and Ethylene Glycol are commonly mistaken to be the same ingredient. Carveaholic. If 100 per cent glycol is purchased then on-site mixing is required, and this can cause issues if not done properly. Water is nature’s heat transfer fluid, a liquid used since the dawn of time to heat and cool. FlowCool IG can be used in any application where low toxicity is not a requirement. Like ethylene glycol, propylene glycol may also be used as antifreeze and can be found in high concentrations in RV and “pet-friendly” antifreezes. How long does it take and will a flush totally stop its reaction. - small molecular weight = poorly absorbed -> activated charcoal wont be very helpful - ethylene glycol -> Glycoaldehyde -> Glycolic Acid -> Glycoxalic Acid -> Oxalic acid -> binds serum Ca -> insoluble calcium oxalate crystals (monohydrate) & hypocalcemia. Fill with water. Then I noticed the sticker on the machine … It has something to do with different specific gravity. If glycol must be site mixed, it should only be done with deionized water.” Hogle explained that ethylene and propylene glycol have different fluid, toxicity, and heat transfer characteristics that will actually prevent the system from operating correctly when mixed. Antifreeze for Bobcat S300 - Propylene or Ethylene Glycol? Ethylene Glycol is used as an anti-freeze, but it has a high toxicity level which may be harmful to your skin. In the refractometer field of view at the right you can see an area of grey scale and an area of white. Although both propylene glycol and ethylene glycol have a large number of applications across a variety of industries and uses including cosmetics and preservatives (propylene glycol) and within the manufacture of resins, inks and polyethylene terephthalate (ethylene glycol) both have a common use within antifreeze and coolant mixes. What did I do wrong? From the shoutbox: Quote:» Alpha Dream - 10-23-8:04 pm -- Isopropyl myristate is something they add to alcohol to denature it.It's similar but thicker than PG. Yes, Ethylene glycol and Propylene glycol are very similar chemically, therefore, can be mixed without any bad consequences for the engine. Ethylene or propylene glycol, to depress the freeze point of the fluid. Propylene glycol is used in the “non-toxic” version of anti-freeze. But they have completely different structures and attributes. with water and glycol, you get solution seperation and will still get icy chnks - wont bust your pipes - but the ice chunks can block stuff, not good for a sprinkler . Water / glycol can be heated by electricity, wood, pellets, natural gas, propane, fuel oil … Will I need another heating system ? However, while ethylene glycol and propylene glycol are both biodegradable, propylene glycol degrades at a slower rate and has a greater biochemical oxygen demand. Propylene glycol (IUPAC name: propane-1,2-diol) is a viscous, colorless liquid, which is nearly odorless but possesses a faintly sweet taste.Its chemical formula is CH 3 CH(OH)CH 2 OH. There have been a couple of cases where children receiving high doses had problems with heart function too. Drain the water. This is the best way to add glycol as it guarantees the correct glycol concentration, and that the water used in the mixture is free of contaminants. What spp is ethylene glycol poisoning common? Propylene glycol has the E-Number E1520. Or perhaps it could be approximately 30% Ethylene Glycol. Glycol is a water-miscible coolant that is frequently used in heat transfer and cooling applications. Huh? If propylene glycol is on skin, say when giving dermal therapeutics, it can be seen in the blood and in the urine at low levels. While it is mixed with another acid shows that the solution could be approximately 30 % propylene glycol to. 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