sodium 6-(1-naphthylazo)naphthalene-2-sulphonate
sodium 6-(1-naphthylazo)naphthalene-2-sulphonate 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
- Acid Brown 8
- C.I.Acid Brown 8:C.I.13000
- CAS:
- 6407-85-8
- MF:
- C20H13N2NaO3S
- MW:
- 384.38359
- EINECS:
- 229-046-1
- Mol File:
- 6407-85-8.mol
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sodium 6-(1-naphthylazo)naphthalene-2-sulphonate Chemical Properties
- EPA Substance Registry System
- 2-Naphthalenesulfonic acid, 6-(1-naphthalenylazo)-, sodium salt (6407-85-8)
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sodium 6-(1-naphthylazo)naphthalene-2-sulphonate Usage And Synthesis
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 | ||