Methyl Tert-Butyl Ether is an organic compound with the chemical formula C5H12O and is a saturated aliphatic ether family. At standard temperature and pressure, it is a colorless, flammable liquid with a molecular weight of 88.15. This composition has a melting point of -9°C, a boiling point of 55.2-53°C and a vapor pressure of 0.268 bar at 20°C. MTBE is colorless, flammable, soluble in water, and volatile at room temperature. Compounds containing oxygen act as an increaser of the octane number of gasoline and have the advantage of making the combustion of gasoline more complete, significantly reducing the pollutants emitted from the exhaust of cars. In some cases, it has medical use as a gallstone dissolver. Advantages of using MTBE: significant reduction of its risks on human health and smog-forming pollutants, its advisability compared to tetraethyl lead and other additives, having a high octane number compared to other oxygenated substances, ease of obtaining raw materials for its production, appropriate vapor pressure and boiling point, reasonable cost of production, no corrosion or effect on metals (Raffinate II) as a side product (with a production of 60 thousand tons per year)

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