Physical properties of alcohol Nguyen Quang Van K55 TT KHMT Structure of alcohol R O H H bond H R H O O H O H bond H O H H R H O R Bonding and Solubility Hydrogen bonding raises the boiling point of alcohols • Ethanol: 78C >Chloroethane( CH3CH2Cl): 12.3C> ethane: -88.6C The longer the carbon chain in an alcohol is, the lower the solubility in polar solvents and the higher the solubility in nonpolar solvents Methanol Ethanol Propanol infinite solubility in water 23C > Butanol g/ 100mL > Pentanol 2.2 g/100 mL