6407-85-8

Basic information

• Product Name: sodium 6-(1-naphthylazo)naphthalene-2-sulphonate
• Synonyms: sodium 6-(1-naphthylazo)naphthalene-2-sulphonate;6-(1-Naphtylazo)-2-naphthalenesulfonic acid sodium salt;6-[(1-Naphtyl)azo]-2-naphthalenesulfonic acid sodium salt;Azo Acid Brown;C.I.13000;C.I.Acid Brown 8
• CAS NO: 6407-85-8
• Molecular Formula: C20H13N2NaO3S
• Molecular Weight: 384.38359
• EINECS: 229-046-1
• Mol File: 6407-85-8.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 689.6°C at 760 mmHg
• Flash Point: 370.9°C
• Appearance: /
• Density: 1.25g/cm³
• Vapor Pressure: 7.21E-19mmHg at 25°C
• Refractive Index: 1.629
• CAS DataBase Reference: sodium 6-(1-naphthylazo)naphthalene-2-sulphonate(CAS DataBase Reference)
• NIST Chemistry Reference: sodium 6-(1-naphthylazo)naphthalene-2-sulphonate(6407-85-8)
• EPA Substance Registry System: sodium 6-(1-naphthylazo)naphthalene-2-sulphonate(6407-85-8)

Safety Data

• Hazardous Substances Data: 6407-85-8(Hazardous Substances Data)

Usage

Preparation

6-Aminonaphthalene-2-sulfonic acid diazo, and Naphthalen-1-amine coupling, and then diazo, and with ethanol and sodium carbonate common heating, away with amino.

Properties and Applications

brown. Water solution is yellow brown, but water-soluble not beautiful, easily soluble in ethanol is yellow light brown. In the dark for the strong sulfuric acid (purple and product red), after diluted for brown. In aqueous solution to join strong hydrochloric acid for yellow olive brown; Add thick hydrogen for orange brown, oxidation solution. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 4-5 3 2 3 1 3

Standard

Light Fastness

Fading

Stain

ISO

4-5

InChI:InChI=1/C31H28N2O5S/c1-4-37-30(35)27-20(2)32-31-33(28(27)23-11-8-12-25(18-23)36-3)29(34)26(39-31)17-21-13-15-24(16-14-21)38-19-22-9-6-5-7-10-22/h5-18,28H,4,19H2,1-3H3