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Gasoline sold in Brazil contains at least 25% anhydrous ethanol.Hydrous ethanol (about 95% ethanol and 5% water) can be used as fuel in more than 90% of new gasoline fueled cars sold in the country.The California Air Resources Board formalized this issue in 2008 by recognizing control standards for formaldehydes as an emissions control group, much like the conventional NOx and Reactive Organic Gases (ROGs).Flex-fuel engines in Brazil are able to work with all ethanol, all gasoline or any mixture of both.Absolute ethanol may inactivate microbes without destroying them because the alcohol is unable to fully permeate the microbe's membrane.

Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor.It is a psychoactive substance and is the principal type of alcohol found in alcoholic drinks.Ethanol is naturally produced by the fermentation of sugars by yeasts or via petrochemical processes, and is most commonly consumed as a popular recreational drug.The use of “alcohol” for ethanol (in full, “alcohol of wine”) is modern, first recorded 1753, and by the later 17th century referred to “any sublimated substance; distilled spirit” use for “the spirit of wine” (shortened from a full expression alcohol of wine). Ethanol is used in medical wipes and most common antibacterial hand sanitizer gels as an antiseptic.Ethanol kills organisms by denaturing their proteins and dissolving their lipids and is effective against most bacteria and fungi, and many viruses.

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