Eriochrome Black A
Eriochrome Black A Basic information
- Product Name:
- Eriochrome Black A
- Synonyms:
-
- 1-Naphthalenesulfonic acid, 3-hydroxy-4-(2-hydroxy-1-naphthalenyl)azo-7-nitro-, monosodium salt
- 2',3-Dihydroxy-7-nitro-(1',4-azobisnaphthalene)-1-sulfonic acid sodium salt
- 3-Hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic acid sodium salt
- Eriochrome black A (Mordant-black 1)
- SodiuM 3-hydroxy-4-[(2-hydroxy-1-naphthyl)diazenyl]-7-nitronaphthalene-1-sulfonate
- CHROME BLACK A
- CI 15710
- CI NO 15710
- CAS:
- 3618-58-4
- MF:
- C20H12N3NaO7S
- MW:
- 461.38
- EINECS:
- 222-807-9
- Mol File:
- 3618-58-4.mol
Eriochrome Black A Chemical Properties
- Colour Index
- 15710
- form
- powder to crystal
- color
- Red to Dark blue to Black
- EPA Substance Registry System
- 1-Naphthalenesulfonic acid, 3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-, monosodium salt (3618-58-4)
Eriochrome Black A Usage And Synthesis
Uses
Eriochrome Black A is an azo dye that can be removed from water by an adsorbent made of magnetic NiFe2O4 nanoparticles.
Preparation
4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazotization, and Naphthalen-2-ol coupling.
Properties and Applications
blue light gray to black. Black powder. Soluble in water for navy blue, in the water solubility 60 g/l (80 ℃), slightly soluble in ethanol and Acetone. In concentrated sulfuric acid for blue, yellow after diluted into light brown; In concentrated nitric acid for red orange. Its aqueous solution for navy blue, join concentrated hydrochloric acid to pale yellow light brown; Join strong caustic into orange brown. Dyeing wool in nitric acid into black light purple, and have a slight white streaks. Mainly used for wool fabric dyeing, also can be used for silk and nylon dyeing, also can be used for wool and a variety of fiber blended fabric dyeing, can be in acetic acid chromium pretreatment of wool fabric direct printing. Also used in the leather dyeing.
| Standard | Ironing Fastness | Light Fastness | Fulling | Persperation Fastness | Soaping | Water | |
| Alkali | Acid | ||||||
| ISO | 4-5 | 5 | 4-5 | 5 | 5 | 5 | |
| AATCC | 4-5 | 4-5 | 5 | 5 | 5 | ||
References
[1] Moeinpour F, Alimoradi A, Kazemi M. Efficient removal of Eriochrome black-T from aqueous solution using NiFe 2 O 4 magnetic nanoparticles[J]. Journal of environmental health science and engineering, 2014, 12: 1-7.
Eriochrome Black A Preparation Products And Raw materials
Preparation Products
Raw materials
Eriochrome Black ASupplier
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Eriochrome Black A(3618-58-4)Related Product Information
- 1-Amino-2-naphthol-4-sulfonic acid
- ACID RED 88
- ACID BLACK 52
- Eriochrome Black A
- Sodium 4-amino-1-naphthalenesulfonate
- Sodium 1-amine-2-naphthol-4-sulfonate
- Mordant Black 17
- 2,2'-DIHYDROXYAZOBENZENE
- 2-NAPHTHYLAMINE-8-SULFONIC ACID
- 1,1'-AZONAPHTHALENE
- Naphthionic acid
- 2-NITRONAPHTHALENE
- Acid Orange 7
- Eriochrome Black T
- ERIOCHROME BLACK PV
- Eriochrome Black T, 0.5% (w/v) Solution in Triethanolamine Eluant Solution
- Eriochrome Black T Reagent
- ERIOCHROME BLACK T FOR COMPLEXOMETRY