6372. 1,8-Naphthalenediamine

Nomenclature

CAS number: 479-27-6
1,8-Diaminonaphthalene.
C10H10N2; mol wt 158.20.
C 75.92%, H 6.37%, N 17.71%.

Description and references

Prepd by reducing 1,8-dinitronaphthalene with phosphorus triiodide: Meyer, Müller, Ber. 30, 775 (1897).

Chemical structure

Properties

Crystals from dil alc, mp 66.5°. bp12 205°; nD99.4 1.6828; d499.4 1.1265. Sublimable. Turns brown on standing. Soluble in alcohol or ether; slightly sol in water or chloroform.

Derivative

Dihydrochloride.
C10H12Cl2N2; mol wt 231.12.
C 51.97%, H 5.23%, Cl 30.68%, N 12.12%.

Properties

Leaflets, mp 280°.

Use

Antioxidant for lubricating oils. Detection of selenium and nitrites.