6377. 2-Naphthalenesulfonic Acid

Nomenclature

CAS number: 120-18-3
β-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 160°.

Chemical structure

Derivative

Monohydrate.

Properties

White to slightly brownish, cryst leaflets; very hygroscopic. mp 124-125°. mp 91° when anhydr. Freely sol in water.

Use

Manuf β-naphthol and intermediates.