The Triethanolamine, often abbreviated as TEA, is an organic compound that is both a ‘tertiary amine that a tri-alcohol. A tri-alcohol is a molecule with three hydroxyl groups. Like other amines, triethanolamine acts as a weak base, because of the one pair of electrons on the nitrogen atom.
The diethanolamine, also abbreviated in DEA, is an organic compound of formula HN (CH2CH2OH) 2. It is a colorless liquid with a multiplicity of functions that can be considered both a diol or a secondary amine. Like all amines, acts as a weak base.