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Ethanol | CH3CH2OH or C2H6O | CID 702 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
At atmospheric pressure, mixtures of ethanol and water form an azeotrope at about 89.4 mol% ethanol (95.6% ethanol by mass, [84] 97% alcohol by volume), with a boiling point of 351.3 K (78.1 °C). [85]
Properties of aqueous ethanol solutions. [edit] Data obtained from Lange 1967. Mass fraction, Volume concentration, Mass concentration, g/(100 ml) at 15.56 °C. Density relative to 4 °C water [citation needed] Density at 20 °C relative to 20 °C water. Density at 25 °C relative to 25 °C water.
For example, ethanol, with a molecular weight (MW) of 46, has a boiling point of 78 °C (173 °F), whereas propane (MW 44) has a boiling point of −42 °C (−44 °F). Such a large difference in boiling points indicates that molecules of ethanol are attracted to one another much more strongly than are propane molecules.
Find the boiling point of ethanol and other thermophysical and thermochemical properties from NIST Webbook. The boiling point of ethanol is 351.5 K at 1 atm, with an average of 138 values from 148 sources.
Find the normal boiling point of ethanol (C2H6O) and its isotopologues from various sources and references. The average value is 351.45 K with an uncertainty of 0.2 K.
Learn about the properties, acidity, and reactions of alcohols and phenols, such as ethanol. Find out why alcohols have higher boiling points than alkanes due to hydrogen bonding.
