However, the impact of methanol on viscosity is less where this solvent tends to forming hydrogen bond between asphaltene sheets and methanol molecules. Finally, the gas condensate reduced the crude oil viscosity but its impact reduced at higher temperature.

Also, O–H---O hydrogen bonds are clearly stronger than N–H---N hydrogen bonds, as we see by comparing propanol with the amines. As expected, the presence of two hydrogen bonding functions in a compound raises the boiling point even further. Acetic acid (the ninth entry) is an interesting case. The covalent bonds of methanol molecules are nonpolar, so there are no hydrogen bonds among methanol molecules. You pour crystals of table salt (NaCl) into each beaker. Predict what will happen. a) Equal amounts of NaCl crystals will dissolve in both water and methanol. b) NaCl crystals will dissolve readily in methanol but will not dissolve in ...