# Can hydrogen bonding account for viscosity?

I don't know if you have ever handled glycerol, 1,2,3-propanetriol. This material is very syrupy. Here, of course, increased hydrogen bonding does operate with respect to say propane or the propanols, and is responsible for the high density ($\rho = 1.26 \cdot g \cdot m {L}^{-} 1$), and high boiling point (290""^@C).