| Identification | More | [Name]
CHLORAZOL BLACK BH | [CAS]
2429-73-4 | [Synonyms]
CALCOMINE DIAZO BLACK BHD
CHLORAZOL BLACK BH
DIAZO BLACK BH
DIAZO BLACK BHN
DIAZOPHENYL BLACK BH
DIRECT BLUE 2
PONTAMINE DEEP BLUE BH
5-amino-3-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-2,7-Naphthalenedisulfonic acid, trisodium salt
airedale black bhd
azomine black bh
benzanil black bh
C.I. 22590
C.I. direct blue 2
C.I. direct blue 2, trisodium salt
calcomine diazo black
chlorazol leather black bh
Chloroazol Black BH
chrome leather black
chrome leather dark blue
diamine black | [EINECS(EC#)]
219-384-8 | [Molecular Formula]
C32H21N6Na3O11S3 | [MDL Number]
MFCD00059132 | [Molecular Weight]
830.71 | [MOL File]
2429-73-4.mol |
| Hazard Information | Back Directory | [General Description]
Dark blue-black powder. | [Reactivity Profile]
DIRECT BLUE 2(2429-73-4) 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. | [Air & Water Reactions]
Azo dyes can be explosive when suspended in air at specific concentrations. Water soluble. | [Fire Hazard]
Flash point data for this chemical are not available, but DIRECT BLUE 2 is probably combustible. | [Uses]
Direct Blue 2 is an organic azo dye and ground water pollutant, removed via enzymic decolorization by laccase. | [Preparation]
4-(4-Aminophenyl)benzenamine double nitriding, in alkaline conditions respectively with the 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling. | [Properties and Applications]
dark blue. Blue gray powder. Soluble in water for deep purple to black, solubility 35 g/L (85 ℃), slightly soluble in ethanol and soluble fiber element. The strong sulfuric acid in blue, diluted red for purple; In nitric acid for brown in the light purple. The dye solution to join strong hydrochloric acid for red light purple; Add thick sodium hydroxide solution for purplish red color. For cellulose fiber dyeing, the dye absorption rate as well, in 60 ~ 80 ℃ temperature when the biggest affinity. Discharge good, after staining with chromogenic diazotization colorimetric method: use Naphthalen-2-ol show color get navy, between 2 amine with benzene show color get black. Mainly used for cotton, viscose, silk, leather and pulp color.
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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Fading
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Stain
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Fading
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Stain
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|
ISO
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4
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4
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2
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2
|
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2
|
|
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AATCC
|
3
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3
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3
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3
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|
3
|
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| Company Name: |
Keshav Chemicals
|
| Tel: |
+91-9909429828 +91-9723001177 |
| Website: |
www.keshavchemicals.com |
| Company Name: |
SHREENATH ORGOCHEM
|
| Tel: |
+91-9377072739 +91-9376244453 |
| Website: |
www.organoimpex.com |
|