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Ethanol was first isolated from wine in approximately 1100 and was found to burn shortly thereafter. These early solutions distilled from wine-salt mixtures were referred to as aqua ardens (burning water) or aqua flamens (flaming water) and had such low alcohol content that they burned without producing noticeable heat. By the 13th century, the ...
Ethanol contains approximately 34% less energy per unit volume than gasoline, and therefore in theory, burning pure ethanol in a vehicle reduces range per unit measure by 34%, given the same fuel economy, compared to burning pure gasoline. However, since ethanol has a higher octane rating, the engine can be made more efficient by raising its ...
Scientific evidence reveals that water is an inhibitor for corrosion by ethanol. [6] The experiments are done with E50, which is more aggressive and speeds up the corrosion effect. It is very clear that by increasing the amount of water in fuel ethanol one can reduce corrosion. At 2% or 20,000 ppm water in the ethanol fuel the corrosion stopped.
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Ethanol burning with its spectrum depicted. Ethanol is a volatile, colorless liquid that has a slight odor. It burns with a smokeless blue flame that is not always visible in normal light. The physical properties of ethanol stem primarily from the presence of its hydroxyl group and the shortness of its carbon chain.
Sugarcane ethanol has an energy balance seven times greater than corn ethanol. [101] As of 2007, Brazilian distiller production costs were 22 cents per liter, compared with 30 cents per liter for corn-based ethanol. [102] Corn-derived ethanol costs 30% more because the corn starch must first be converted to sugar before distillation into ...
Also, sous vide sticks, commonly sold in 1200 W and generally temperature regulated up to 90 °C (194 °F) (ethanol boils at 78 °C (172 °F)), will evaporate the ethanol faster than an immersion heater, commonly sold in 300 W. Electrical injury may occur if immersion heaters are modified, such as if a 35 °C (95 °F) thermostat is removed from ...
Ethanol burning with its spectrum depicted In the study of combustion , the adiabatic flame temperature is the temperature reached by a flame under ideal conditions. It is an upper bound of the temperature that is reached in actual processes.