6358-29-8 Usage
Uses
Used in Textile Industry:
DIRECT FAST RED 3B is used as a coloring agent for various materials, including cotton and silk, due to its ability to produce a vibrant blue-ray red color. Its properties make it a popular choice for dyeing fabrics in the textile industry.
The dye exhibits the following standard resistance and fastness ratings:
Acid Resistance: ISO 3, AATCC 5
Alkali Resistance: ISO 3-4, AATCC 5
Light Fastness: ISO 2, AATCC 2
Soaping: ISO 1-2, AATCC 2
Water Fading: ISO 2, AATCC 2-3
Stain Fading: Not specified
These ratings indicate the dye's performance in terms of resistance to various conditions, making it suitable for use in the textile industry.
Preparation
3,3′-Dimethylbenzidine double nitriding, first and 7-Hydroxynaphthalene-1,3-disulfonic acid coupling, and then coupled with phenol, finally under certain pressure and heat monomer (VCM), hydroxyl ethyl of phenol.
Air & Water Reactions
Azo dyes can be explosive when suspended in air at specific concentrations. Insoluble in water.
Reactivity Profile
DIRECT FAST RED 3B 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.
Fire Hazard
Flash point data for DIRECT FAST RED 3B are not available. DIRECT FAST RED 3B is probably combustible.
Standard
Acid Resistance
Fading
Stain
ISO
3
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 6358-29-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,5 and 8 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6358-29:
(6*6)+(5*3)+(4*5)+(3*8)+(2*2)+(1*9)=108
108 % 10 = 8
So 6358-29-8 is a valid CAS Registry Number.
InChI:InChI=1/C32H28N4O8S2/c1-4-44-25-10-8-24(9-11-25)33-34-27-12-5-21(15-19(27)2)22-6-13-28(20(3)16-22)35-36-32-29(37)14-7-23-17-26(45(38,39)40)18-30(31(23)32)46(41,42)43/h5-18,35H,4H2,1-3H3,(H,38,39,40)(H,41,42,43)/b34-33+,36-32+
