2-Naphthalenesulfonic Acid
Title: 2-Naphthalenesulfonic Acid
CAS Registry Number: 120-18-3
Additional Names: b-Naphthalenesulfonic acid
Molecular Formula: C10H8O3S
Molecular Weight: 208.23
Percent Composition: C 57.68%, H 3.87%, O 23.05%, S 15.40%
Literature References: Made by sulfonating naphthalene with H2SO4 at 160°.
Derivative Type: Monohydrate
Properties: White to slightly brownish, cryst leaflets; very hygroscopic. mp 124-125°. mp 91° when anhydr. Freely sol in water.
Melting point: mp 124-125°; mp 91° when anhydr
Use: Manuf b-naphthol and intermediates.

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