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23 Ιαν 2023 · This page explains what amines are, and what the difference is between primary, secondary and tertiary amines. It looks in some detail at their simple physical properties such as solubility and boiling points.
- 23.1: Properties of amines
Amines are organic compounds which contain and are often...
- 24.2: Structure and Properties of Amines
Like alcohols, amines with fewer than five carbon atoms are...
- 23.1: Properties of amines
Amines are organic compounds which contain and are often actually based on one or more atoms of nitrogen. Structurally amines resemble ammonia in that the nitrogen can bond up to three hydrogens, but amines also have additional properties based on their carbon connectivity.
30 Σεπ 2024 · Like alcohols, amines with fewer than five carbon atoms are generally water-soluble. Also like alcohols, primary and secondary amines form hydrogen bonds and are highly associated. As a result, amines have higher boiling points than alkanes of similar molecular weight.
Amines are organic compounds which contain and are often actually based on one or more atoms of nitrogen. Structurally amines resemble ammonia in that the nitrogen can bond up to three hydrogens, but amines also have additional properties based on their carbon connectivity.
Like alcohols, amines with fewer than five carbon atoms are generally water-soluble. Also like alcohols, primary and secondary amines form hydrogen bonds and are highly associated. As a result, amines have higher boiling points than alkanes of similar molecular weight.
Compounds with a nitrogen atom attached to a carbonyl group, thus having the structure R−C(=O)−NR′R″, are called amides and have different chemical properties from amines.
Physical properties of amines. Boiling points. The table shows the boiling points of some simple amines. We will need to look at this with some care to sort out the patterns and reasons. Concentrate first on the primary amines. Primary amines. It is useful to compare the boiling point of methylamine, CH 3 NH 2, with that of ethane, CH 3 CH 3.
