2429-82-5 Usage
Description
DIRECT FAST BROWN M is a reddish-brown solid or dark brown powder that is a direct dye used primarily with textiles. It is known to be a water pollutant and can be removed from the environment through adsorption by magnetic nano cobalt ferrite doped Capra aegagrus hircus dung activated carbon composite.
Uses
Used in Textile Industry:
DIRECT FAST BROWN M is used as a dye for cellulose fibers, particularly cotton, due to its good dye devoured rate and affinity at temperatures between 60 to 80 ℃. After dyeing, treatment with copper sulfate can improve the color fastness.
Used in Pulp and Paper Industry:
DIRECT FAST BROWN M is used as a dye for pulp and leather, as well as in the manufacturing of color pigment sediment.
Properties and Applications:
The dye is soluble in water, resulting in a deep red light brown solution, and in ethanol, producing a palm red light color. It is slightly soluble in acetone and insoluble in other organic solvents. When exposed to strong sulfuric acid, the dye turns purple and then red light brown upon dilution. In nitric acid, the dye appears orange brown. The addition of strong hydrochloric acid to the dye solution results in a dark brown color, while the addition of thick sodium hydroxide solution turns it orange brown.
Standard:
The standard for DIRECT FAST BROWN M includes the following ratings:
Acid Resistance: ISO 3, AATCC 3
Alkali Resistance: ISO 4-5, AATCC 5
Light Fastness: ISO 3, AATCC 3
Soaping: ISO 2, AATCC 3
Water Fading: ISO 2, AATCC 3
Stain Fading: ISO 2, AATCC 3
These ratings indicate the performance and resistance of DIRECT FAST BROWN M in various conditions, making it suitable for its applications in the textile, pulp, and paper industries.
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Slightly soluble in water.
Reactivity Profile
DIRECT FAST BROWN M 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.
Hazard
Low toxicity by ingestion.
Fire Hazard
Flash point data for DIRECT FAST BROWN M are not available, however, DIRECT FAST BROWN M is probably combustible.
Standard
Acid Resistance
Fading
Stain
ISO
3
AATCC
3
Check Digit Verification of cas no
The CAS Registry Mumber 2429-82-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,2 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2429-82:
(6*2)+(5*4)+(4*2)+(3*9)+(2*8)+(1*2)=85
85 % 10 = 5
So 2429-82-5 is a valid CAS Registry Number.
InChI:InChI=1/C29H21N5O7S/c30-19-6-1-18-13-26(42(39,40)41)27(28(36)23(18)14-19)34-32-21-9-4-17(5-10-21)16-2-7-20(8-3-16)31-33-22-11-12-25(35)24(15-22)29(37)38/h1-15,31-32H,30H2,(H,37,38)(H,39,40,41)/b33-22-,34-27-
