6376. 1-Naphthalenesulfonic Acid

Nomenclature

CAS number: 85-47-2
α-Naphthalenesulfonic acid.
C10H8O3S; mol wt 208.23.
C 57.68%, H 3.87%, O 23.05%, S 15.40%.

Description and references

Made by sulfonating naphthalene with H2SO4 at 0°.

Chemical structure

Properties

Crystals. mp 90° (dihydrate). Freely sol in water or alcohol, slightly in ether.

Use

Manuf α-naphthol. The sodium salt is used for rendering phenols sol in water.