1,6-Naphthalenedisulfonic acid Chemical Properties

Melting point:

125°C (rough estimate)

Boiling point:

400.53°C (rough estimate)

Density 

1.6867 (rough estimate)

refractive index 

1.5630 (estimate)

storage temp. 

Inert atmosphere,Room Temperature

pka

-0.17±0.40(Predicted)

Safety Information

RIDADR 

1759

HazardClass 

8

PackingGroup 

III

HS Code 

2904100090

1,6-Naphthalenedisulfonic acid Usage And Synthesis

Uses

Alkali fusion of 1,6-Naphthalenedisulfonic acid yields 1,6-dihydroxynaphthalene, and sulfonation with oleum produces naphthalene-1,3,6-trisulfonic acid. However, the main outlet for naphthalene-1,6-disulfonic acid is via nitration to 1- nitronaphthalene-3,8-disulfonic acid, which is the intermediate for 1-aminonaphthalene-3,8- disulfonic acid.

Definition

ChEBI: Naphthalene-1,6-disulfonic acid is a naphthalenesulfonic acid.

Production Methods

Separation from the 1,5-disulfonic acid process (see above) usually meets requirements for the preparation of Naphthalene-1,6-disulfonic acid. It can also be prepared by sulfonation of naphthalene-2- sulfonic acid with oleum, which gives naphthalene-1,7-disulfonic acid as a byproduct.

1,6-Naphthalenedisulfonic acid (525-37-1)Related Product Information

• 1,3-DIHYDROXYNAPHTHALENE
• 8-Aminonaphthalene-1,6-disulfonic acid
• 2-Amino-3,6,8-naphthalenetrisulfonic acid
• 1-NAPHTHYLAMINE-3,6,8-TRISULFONIC ACID DISODIUM SALT HYDRATE
• Koch acid
• 1,3,(6,7)-Naphthalenetrisulfonic acid trisodium salt hydrate
• 1-NAPHTHOL-3,8-DISULFONIC ACID DISODIUM SALT
• PONCEAU 6R
• 1,6-Naphthalenedisulfonic acid disodium salt
• 1,3,6-NAPHTHALENETRISULFONIC ACID, SODIUM SALT, HYDRATE, MIXTURE OF ISOMERS
• 1-NAPHTHOL-3,8-DISULFONIC ACID
• 2,NAPHTHOL-3,6,8-TRISULFONIC ACID
• EPSILON ACID, AMMONIUM SALT
• 7-AMINO-1,3,6-NAPHTHALENETRISULFONIC ACID DISODIUM SALT
• 1-AMINO-3,8-NAPHTHALENEDISULFONIC ACID MONOSODIUM SALT
• DIRECT BLUE 98
• DIRECT VIOLET 22
• ALKALI GREEN