Isopropylamine: chemical properties, structural formula

Isopropylamine (monoisopropyl amine, MIPA, 2-Propylamine) is an organic compound, an amine. It is a hygroscopic colorless liquid with ammonia-like odor. It is miscible with water and flammable. It is a valuable intermediate in chemical industry. Isopropylamine appears as a clear colorless liquid with an ammonia-like odor. Flash point -35°F. Boiling point 90°F. Less dense than water Vapors heavier than air. Produces toxic oxides of nitrogen during combustion. Used as a solvent and to make other chemicals.

Suggested title	Isopropylamine
Synonym	Propanamine-2
Classes	Amines Primary amines
Molar mass	59 g/mol
Gross formula	C ₃ H ₉ N

Contents

Receipt
Obtaining amines from alcohols
Displacement of amines from their salts by stronger bases
Hydrogenation of nitro compounds*
Recovery in an alkaline or neutral environment*
Decomposition of unstable carboxylic acids*
Chemical properties
The main properties of amines, obtaining ammonium compounds
N-alkylation of amines, obtaining secondary and tertiary amines
Preparation of ammonium compounds with halogen derivatives
Reaction of primary amines with nitrous acid*
Combustion

Receipt

Obtaining amines from alcohols

propanol-2 + ammonia → (t°, cat) → isopropylamine + water

The reaction can continue until secondary and tertiary amines are obtained, in practice a mixture of products is obtained.

Displacement of amines from their salts by stronger bases

isopropylammonium iodide + sodium hydroxide → isopropylamine + sodium iodide + water

Hydrogenation of nitro compounds*

2-nitropropane + 3 hydrogen → (t°, nickel) → isopropylamine + 2 water

Recovery in an alkaline or neutral environment*

2-nitropropane + 3 ammonium sulfide → isopropylamine + 3 sulfur + 6 ammonia + 2 water

Decomposition of unstable carboxylic acids*

2-methylalanine → (t°) → isopropylamine + carbon dioxide

Chemical properties

The main properties of amines, obtaining ammonium compounds

isopropylamine + hydrochloric acid → isopropylammonium chloride

N-alkylation of amines, obtaining secondary and tertiary amines

Isopropylamine + chloroethane + sodium hydroxide → isopropylethylamine + sodium chloride + water

The reaction is carried out in two stages. The intermediate product is a salt, which can be treated with alkali to isolate the amine.
Above is the summary equation of the two reactions.

Preparation of ammonium compounds with halogen derivatives

isopropylamine + chloroethane → isopropylethylammonium chloride

Reaction of primary amines with nitrous acid*

isopropylamine + sodium nitrite + hydrochloric acid → propanol-2 + nitrogen↑ + sodium chloride + water

This is a qualitative reaction to primary amines, sign: gas evolution N₂ . The reaction proceeds in two stages: sodium nitrite with hydrochloric acid give nitrous acid, which reacts with the amine. To get a simplified record of the reaction, press the ≡ button.