12225-25-1

Basic information

• Product Name: REACTIVE BLACK 5
• Synonyms: Black KN-B;Tetrasodium (3Z)-5-amino-4-oxo-6-[4-(2-sulfonatooxyethylsulfonyl)phenyl]diazenyl-3-[[4-(2-sulfonatooxyethylsulfonyl)phenyl]hydrazinylidene]naphthalene-2,7-disulfonate;Reactive Black 5;C.I. 20505;Black B
• CAS NO: 12225-25-1
• Molecular Formula: C22H16N2O11S3.2Na
• Molecular Weight: 626.549
• EINECS: 241-164-5
• Mol File: 12225-25-1.mol
• Article Data: 0

Chemical Properties

• Melting Point: 300℃
• Appearance: /
• CAS DataBase Reference: REACTIVE BLACK 5(CAS DataBase Reference)
• NIST Chemistry Reference: REACTIVE BLACK 5(12225-25-1)
• EPA Substance Registry System: REACTIVE BLACK 5(12225-25-1)

Safety Data

• Hazardous Substances Data: 12225-25-1(Hazardous Substances Data)

Usage

Preparation

2-(4-Aminophenylsulfonyl)ethyl hydrogen sulfate (2 Moore) diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling.

Properties and Applications

black. Black powder. The strong sulfuric acid for green, diluted into a brown. The dye solution for blu-ray black, add 1 Moore sodium hydroxide solution no change colour and lustre, continue to join insurance powder and warm, to tan and add a boric acid sodium can’t back to its original colour and lustre. 20 ℃ when solubility of 200 g/L, 80 ℃ the solubility of more than 200 g/L. After dyeing color shade of green light for black, dye bath containing iron ion colored light basic unchanged, contain copper ions colored light red. The dye the affine high, the reaction of the high. 1:1 standard white depth for 3 ~ 4 levels. Used for cotton, viscose, wool and polyamide fiber disseminated, roll the dye, knot dyeing piled up and dyeing of continuous. Can also be used for cotton or viscose fabric printing and dyeing directly the printing and discharge printing Standard Light Fastness Oxygen bleaching Persperation Fastness Soaping Fading Stain Fading Stain Fading Stain ISO 5 4-5 (green) 5 4-5(70℃) 5

Standard

Light Fastness

Fading

Stain

ISO

5

InChI:InChI=1/C26H25N5O19S6.4Na/c27-23-22-15(13-20(53(37,38)39)24(23)30-28-16-1-5-18(6-2-16)51(33,34)11-9-49-55(43,44)45)14-21(54(40,41)42)25(26(22)32)31-29-17-3-7-19(8-4-17)52(35,36)12-10-50-56(46,47)48;;;;/h1-8,13-14,32H,9-12,27H2,(H,37,38,39)(H,40,41,42)(H,43,44,45)(H,46,47,48);;;;/q;4*+1/p-4/b30-28+,31-29+;;;;

Related news

Electrochemical stripping of cotton fabrics dyed with REACTIVE BLACK 5 (cas 12225-25-1) in water and wastewater08/07/2019

Cotton fabrics dyed with Reactive Black 5 (RB5) was electrochemically stripped using Ti/TiO2-RuO2-IrO2 anode in water, pyridine and phenol solution. The results showed that RB5 dye could be easily stripped from the surface of cotton fabrics through the cleavage of chromophoric group (NN) under t...detailed

Effective biotransformation of REACTIVE BLACK 5 (cas 12225-25-1) Dye Using Crude Protease from Bacillus Cereus Strain KM20142808/05/2019

Effective effluent treatment is a paramount step towards conserving the dwindling clean water resources. The present study describes the use of crude protease extract from Bacillus Cereus Strain KM201428 biotransformation of azo dye Reactive Black 5 (RB5). Batch experimental results displayed ov...detailed

Plasmonic photodegradation of textile dye REACTIVE BLACK 5 (cas 12225-25-1) under visible light: a vibrational and electronic study08/04/2019

Heterogeneous photocatalysis using semiconductor oxides as a photocatalyst is an intensely employed technique in photodegradation processes under UV irradiation. More recently, plasmonic photocatalysis came in as a technique that promotes intensification of photodegradation processes, in additio...detailed