| Identification | Back Directory | [Name]
Direct Black 80 | [CAS]
8003-69-8 | [Synonyms]
Black OB
DirectblackOB
Saturn Black OB
Benzo Black OB-V
Fabramine Black OB
Fabramine Black OB-NJ
Dycosdirect Black TOB
C.I. direct black 80.
Vicorect Diazo Black OB.
Dinamine Diazo Black NB-OB
Atul Developed Black NB-OB
Direct black 80 (C.I. 31600)
trisodium 6-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-4-hydroxynaphthalene-2-sulphonate
2-Naphthalenesulfonic acid, 6-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo-3-4-4-amino-6(or 7)-sulfo-1-naphthalenylazophenylazo-4-hydroxy-, trisodium salt
2-Naphthalenesulfonic acid, 6-[(7-amino-1-hydroxy-3-sulfo-2-naphthlenyl)azo]-3-[[4-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]phenyl]azo]-4-hydroxy, trisodium salt | [EINECS(EC#)]
232-322-4 | [Molecular Formula]
C36H23N8O11S3.3Na | [MDL Number]
MFCD00071842 | [MOL File]
8003-69-8.mol | [Molecular Weight]
908.791 |
| Hazard Information | Back Directory | [Chemical Properties]
dark blue to black powder | [General Description]
Bluish-black to black powder. Odorless. | [Air & Water Reactions]
Water soluble. Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water. | [Reactivity Profile]
Direct Black 80 is an azo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides. Direct Black 80 is incompatible with oxidizing and reducing agents. | [Health Hazard]
ACUTE/CHRONIC HAZARDS: When heated to decomposition Direct Black 80 emits toxic fumes of nitrogen oxides. | [Fire Hazard]
Flash point data for Direct Black 80 are not available; however, Direct Black 80 is probably combustible. Dust may form explosive mixtures with air. | [Uses]
Direct Black 80 is mainly used for dyeing cellulosic fibers such as cotton and linen, and can also be used to dye silk in acetic acid or formic acid baths. When dyed in the same bath as other fibers, silk and wool are dyed light colors, acetate fibers do not stain, and nylon has slight staining; it can also be used for coloring paper and leather. | [Preparation]
N-(4-aminophenyl)acetamide diazo, The reduction of the conditions with?6-Amino-4-hydroxynaphthalene-2-sulfonic acid?coupling, acylation, three amino nitrogen, which then double first and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid, again in three alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling. | [Properties and Applications]
black. Blue-black uniform powder. Soluble in water for a blue-black, insoluble in organic solvents. The strong sulfuric acid for blue, purple precipitation after diluted; In nitric acid solution for yellow light red; Partly dissolved in strong hydrochloric acid for purple. The dye solution to join 10% sodium hydroxide solution for red light blue. Used for cellulose fiber dyeing, also can be used for paper and leather color.
|
Standard
|
Acid Resistance
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Alkali Resistance
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Light Fastness
|
Soaping
|
Water
|
|
Fading
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Stain
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Fading
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Stain
|
|
ISO
|
4
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4-5
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2
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3-4
|
|
3-4
|
|
|
AATCC
|
3
|
5
|
3
|
3
|
|
4
|
|
|
|
| Company Name: |
Lynnchem
|
| Telephone: |
86-(0)29-85992781 17792393971 |
| Website: |
http://www.lynnchem.com/ |
|