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Ethylene glycol is a high-production-volume chemical. It breaks down in air in about 10 days and in water or soil in a few weeks. It enters the environment through the dispersal of ethylene glycol-containing products, especially at airports, where it is used in de-icing agents for runways and airplanes. [39]
The toxic effects of ingesting ethylene glycol occur because it is converted by the liver into 4 other chemicals that are much more toxic. The lethal dose of pure ethylene glycol is 1.4 ml/kg (3 US fluid ounces (90 ml) is lethal to a 140-pound (64 kg) person) but is much less lethal if treated within an hour. [9] (see Ethylene glycol poisoning).
Conventional cryoprotectants are glycols (alcohols containing at least two hydroxyl groups), such as ethylene glycol [citation needed], propylene glycol and glycerol. Ethylene glycol is commonly used as automobile antifreeze; while propylene glycol has been used to reduce ice formation in ice cream.
Paul Menard's Menards/PEAK Antifreeze Chevy in 2008. PEAK is known for its sponsorship of motorsports teams and events, primarily in the IndyCar Series , NASCAR , and the NHRA . OWI sponsored the fall Sprint Cup Series event at Dover International Speedway from 1989 to 1992 as the PEAK Antifreeze 500 and from 1993 to 1994 as the SplitFire Spark ...
Major products include ethylene glycol, caustic soda, chlorine, and vinyl chloride monomer (VCM, for making PVC). Ethylene oxide and propylene oxide and the derived alcohols ethylene glycol and propylene glycol are major feedstocks for the manufacture of plastics such as polyurethane and PET .
Propylene glycol plays a significant role in the application of a glycol chiller. For cooling in brewing, there are few processes where decreasing or maintaining temperature are important - like crash cooling a beer after fermentation, or keeping a steady temperature during fermentation (which generates heat), or cooling the wort after an ...
Phase behavior Triple point: 256 K (−17 °C), ? Pa Critical point: 720 K (447 °C), 8.2 MPa Standard enthalpy change of fusion, Δ fus H o: 9.9 kJ/mol Standard entropy change of fusion, Δ fus S o
Examples include ethane-1,2-diol or ethylene glycol HO−(CH 2) 2 −OH, a common ingredient of antifreeze products. Another example is propane-1,2-diol, or alpha propylene glycol, HO−CH 2 −CH(OH)−CH 3, used in the food and medicine industry, as well as a relatively non-poisonous antifreeze product.
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