6375. 2,7-Naphthalenedisulfonic Acid

Nomenclature

CAS number: 92-41-1
Ebert-Merz α-acid.
C10H8O6S2; mol wt 288.30.
C 41.66%, H 2.80%, O 33.30%, S 22.24%.

Description and references

Prepn from naphthalene and concd H2SO4: Fierz-David, Blangey, Fundamental Processes of Dye Chemistry (Interscience, New York, 1949) p 209.

Chemical structure

Properties

Very deliquesc crystals. Very sol in water, alcohol; practically insol in ether.

Use

In dye chemistry.