Basic information Safety Supplier Related

Naphthalene-2,7-disulfonic acid

Basic information Safety Supplier Related

Naphthalene-2,7-disulfonic acid Basic information

Product Name:
Naphthalene-2,7-disulfonic acid
Synonyms:
  • naphthalene-2,7-disulfonic acid
  • 2,7-NAPHTHALENE DISULFONIC ACID
  • naphthalene-2,7-disulphonic acid
  • 3,6-Naphthalenedisulfonic acid
  • Ebert-Merz α-acid
CAS:
92-41-1
MF:
C10H8O6S2
MW:
288.3
EINECS:
202-154-6
Product Categories:
  • Intermediates of Dyes and Pigments
Mol File:
92-41-1.mol
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Naphthalene-2,7-disulfonic acid Chemical Properties

Melting point:
199°C
Boiling point:
400.53°C (rough estimate)
Density 
1.6867 (rough estimate)
refractive index 
1.6950 (estimate)
CAS DataBase Reference
92-41-1(CAS DataBase Reference)
EPA Substance Registry System
2,7-Naphthalenedisulfonic acid (92-41-1)
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Safety Information

RIDADR 
1759
HazardClass 
8
PackingGroup 
III
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Naphthalene-2,7-disulfonic acid Usage And Synthesis

Chemical Properties

White, crystalline solid.Soluble in water. Combustible.

Uses

Intermediate for dyes.

Definition

ChEBI: A naphthalenesulfonic acid in which the sulfo groups are attached to positions 2 and 7 of the naphthalene ring.

Purification Methods

Crystallise the acid from conc HCl. The disulfonamide has m 273o (from EtOH). [Beilstein 11 II 119, 11 III 463.]

Naphthalene-2,7-disulfonic acid Preparation Products And Raw materials

Preparation Products

Naphthalene-2,7-disulfonic acidSupplier

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