Why acetaldehyde has a higher boiling point than ethylamine?

[jaumzaum]

Ethylamine has 2 hydrogen bonds, Acethaldehyde has no one, so why the second has a higher boiling point?

 

[Mike H]

Is hydrogen bonding the only intermolecular force of consequence in this situation?

How effectively can ethylamine hydrogen bond with itself? It has a lone pair on the nitrogen to serve as an H-bond acceptor, and has two amine hydrogens that can be donated.

How large of a difference is there between the two boiling points?

 

[jaumzaum]

The boiling points are very close:
Acetaldehyde 68ºF
Ethylamine: 62ºF