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Most modern cars are built with organic acid technology (OAT) antifreeze (e.g., DEX-COOL [25]), or with a hybrid organic acid technology (HOAT) formulation (e.g., Zerex G-05), [26] both of which are claimed to have an extended service life of five years or 240,000 km (150,000 mi). DEX-COOL specifically has caused controversy.
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Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound (a vicinal diol [7]) with the formula (CH 2 OH) 2.It is mainly used for two purposes: as a raw material in the manufacture of polyester fibers and for antifreeze formulations.
Dex, in the film Star Wars: Episode II – Attack of the Clones; Dex, in the film The Tao of Steve; Ronon Dex, from the TV series Stargate Atlantis; Dex Dexter, from the TV series Dynasty
The car also received a revised rear suspension, similar to that of the then-newly redesigned Cavalier. This slightly reduced the "floatiness" of the ride which occurred with earlier models. All Corsicas now came with Dex-Cool engine coolant. The car also received a new tire size, 195/70R14 for longer tire life and better handling.
A preliminary zeroth order analysis may be performed to answer fundamental questions about the nature of the unknown material. Methods that might be used for the preliminary analysis include spectroscopic methods, such as infrared spectroscopy or x-ray fluorescence spectroscopy.
Acetalated dextran was first reported in 2008 out of the lab of Jean Fréchet at the University of California, Berkeley in the College of Chemistry. [2] [3] This version of acetalated dextran, often abbreviated Ac-DEX, has dextran and exceedingly low levels of acetone and methanol as degradation products.
Dexcom was founded in 1999 by Scott Glenn, John Burd, Lauren Otsuki, Ellen Preston and Bret Megargel. [3] [4] In 2006, Dexcom received U.S. Food and Drug Administration (FDA) approval and launched the Dexcom STS Continuous Glucose Monitoring System, which is a three-day sensor that provides up to 288 glucose measurements for every 24 hours.