ChemicalBook > CAS DataBase List > Direct Black 19

Direct Black 19

Product Name
Direct Black 19
CAS No.
6428-31-5
Chemical Name
Direct Black 19
Synonyms
Black G;C.I.35255;RIFAZOLBLACKGR;Direct Black 19;Kayarus Black G;Direct black RN;Sumilight Black G;Condires Black AN;Vicorect Black FB.;Benzo Fast Black G
CBNumber
CB4875556
Molecular Formula
C34H30N13NaO7S2
Formula Weight
819.81
MOL File
6428-31-5.mol
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Direct Black 19 Property

Boiling point:
1379℃[at 101 325 Pa]
Density 
1.49[at 20℃]
vapor pressure 
0Pa at 25℃
Water Solubility 
22.67g/L at 20℃
LogP
-1.5 at 20℃
CAS DataBase Reference
6428-31-5(CAS DataBase Reference)
EPA Substance Registry System
C.I. Direct Black 19, disodium salt (6428-31-5)
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Safety

Hazardous Substances Data
6428-31-5(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
S12174
Product name
DIRECT BLACK 19 (C.I.35255)
Purity
AldrichCPR
Packaging
250mg
Price
$179
Updated
2024/03/01
Biosynth Carbosynth
Product number
FD44459
Product name
Direct Black 19
Packaging
1kg
Price
$250
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
DYE0002793
Product name
DIRECT BLACK 19
Purity
95.00%
Packaging
5MG
Price
$503.84
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD44459
Product name
Direct Black 19
Packaging
50g
Price
$40
Updated
2021/12/16
Biosynth Carbosynth
Product number
FD44459
Product name
Direct Black 19
Packaging
100g
Price
$60
Updated
2021/12/16
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Direct Black 19 Chemical Properties,Usage,Production

Preparation

4-Nitrobenzenamine (2 Moore) diazo, one in acid conditions, a in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid (1 Moore) coupling, and then will the nitro reduction, diazotization, again with Benzene-1,3-diamine (2 Moore) coupled.

Flammability and Explosibility

Non flammable

Properties and Applications

green and black. Black powder. Soluble in water for green light black, solubility of 100 g/L (80 ℃), slightly soluble in ethanol and acetone. The strong sulfuric acid in the green light for black, dilute red after black precipitation; In nitric acid to dark brown. Dyes and microstructure of sulfuric acid solution 10% red; Add thick sodium hydroxide solution for green light blue. Copper ions in dyeing color shade the green, iron ion a slight change in color. Used in viscose of dyeing and printing. In the cotton knitwear, blankets, flannelette, silk, viscose, silk that the fabric, wool/viscose fiber blend fabrics can be used. Can also be used in leather, paper and electrochemical aluminum color.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 3 3-4 2 2
AATCC 4-5 3 3 2-3 2

Direct Black 19 Preparation Products And Raw materials

Raw materials

Sodium sulfide Sodium nitrite m-Phenylenediamine 4-Nitroaniline Sodium carbonate

Preparation Products

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Direct Black 19 Suppliers

China 102 Europe 1 Germany 1 India 26 United Kingdom 1 United States 6 Global 137
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View Lastest Price from Direct Black 19 manufacturers

Winchem industrial co limited
Product
Direct Black 19 6428-31-5
Price
US $0.00/kg
Min. Order
25kg
Purity
1
Supply Ability
5mt
Release date
2022-12-29
TIANJIN XIANGRUI DYESTUFF CO.,LTD
Product
Direct Black 19, DIrect Fast Black G 6428-31-5
Price
US $2.00/kg
Min. Order
25kg
Purity
99%
Supply Ability
20 tons
Release date
2022-10-26
Career Henan Chemical Co
Product
Direct Black 19 6428-31-5
Price
US $1.00/KG
Min. Order
1KG
Purity
98%HPLC
Supply Ability
10t
Release date
2019-12-23

6428-31-5, Direct Black 19Related Search:

DIRECT RED 80 Direct Black 168 Direct Orange S Direct Yellow 12 Direct Black 38 Iron Oxide Green DIAMINE GREEN B CHLORAZOL VIOLET N BRILLIANT YELLOW Direct Red 31 DIRECT FAST BROWN M STILBENE YELLOW CI NO 22610 Direct Red 23 DIRECT BLUE 15 Direct Blue 86 Direct Black 166 DIRECT BLACK 22

  • Direct black RN
  • disodium 4-amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate
  • Black G
  • Atul Direct Black VG
  • Benzo Fast Black G
  • Condires Black AN
  • Kayarus Black G
  • Sumilight Black G
  • Tertrodirect Viscose Black GTN
  • Vicorect Black FB.
  • Direct Black 19
  • 2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis4-(2,4-diaminophenyl)azophenylazo-5-hydroxy-, disodium salt
  • RIFAZOLBLACKGR
  • Direct black 19 (C.I. 35255)
  • 1-Hydroxy-8-amino-2,7-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-3,6-naphthalenedisulfonic acid disodium salt
  • 4-Amino-3,6-bis[[4-[(2,4-diaminophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt
  • C.I.35255
  • 2,7-Naphthalenedisulfonic acid, 4-amino-3,6-bis[2-[4-[2-(2,4-d iaminophenyl)diazenyl]phenyl]diazenyl]-5 -hydroxy-, sodium salt (1:2)
  • DIRECT BLACK 19 LIQUID
  • Direct Black 19 ISO 9001：2015 REACH
  • Direct Fast Black G (C.I. Direct Black 19)
  • C.I.Direct Black 19:C.I.35255
  • Direct Black 19, DIrect Fast Black G
  • 4-Amino-3,6-bis((4-((2,4-diaminophenyl)diazenyl)phenyl)diazenyl)-5-hydroxynaphthalene-2,7-disulfonic acid, sodium salt
  • 6428-31-5
  • C34H27N13Na2S2O7
  • C34H27Na2O7S2
  • C34H27N13Na2O7S2
  • C34H27N13O7S22Na
  • Organics
  • Dyes and Pigments