41642-51-7 Usage
Description
Disperse Blue 165 is a dark blue powder that is used as a dye for various fabrics, particularly polyester and its blends. It is known for its vibrant color, high lifting force, and good fastness properties, making it suitable for high-temperature and high-pressure dyeing processes. It is also sensitive to temperature, with a higher hot melt temperature resulting in a deeper color.
Uses
Used in Textile Industry:
Disperse Blue 165 is used as a dye for polyester and its blended fabrics. It provides a gorgeous color, high lifting force, and better fastness to sun and sublimation. It is suitable for high-temperature and high-pressure dyeing processes, as well as pure polyester/cotton dyeing and polyester melt knot dyeing.
Used in Dyeing Acrylic and Cellulose Triacetate Fiber Fabrics:
Disperse Blue 165 is used as a dye for acrylic and cellulose triacetate fiber fabrics. It can be used for direct printing and discharge printing, as well as for creating background colors in superfine printing.
Standard:
Disperse Blue 165 meets the following standards for fastness:
Ironing Fastness: ISO 4-5
Light Fastness: ISO 4
Perspiration Fastness: ISO 6 (for staining) and ISO 5 (for fading)
Washing Fastness: ISO 5 (for staining) and ISO 4-5 (for fading)
Preparation
2,6-Dibromo-4-nitroaniline diazo, and 3-Acetylamino-N,N-diethylaniline?coupling, and then replaced with reached bromine atoms.
Flammability and Explosibility
Notclassified
Standard
Ironing Fastness
Fading
Stain
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 41642-51-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,1,6,4 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 41642-51:
(7*4)+(6*1)+(5*6)+(4*4)+(3*2)+(2*5)+(1*1)=97
97 % 10 = 7
So 41642-51-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H19N7O3/c1-4-26(5-2)16-6-7-18(19(10-16)23-13(3)28)24-25-20-14(11-21)8-17(27(29)30)9-15(20)12-22/h6-10H,4-5H2,1-3H3,(H,23,28)
41642-51-7Relevant articles and documents
Preparation method of disperse blue
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Paragraph 0012; 0015, (2016/12/07)
The invention relates to a preparation method of disperse blue. The method comprises the following steps: (1) in a DMF (N,N-dimethylformamide) solvent, adding cuprous cyanide, adding sodium cyanide or zinc cyanide, and carrying out complexation to obtain a complex solution; (2) adding N-(2-((2,6-dibromo-4-nitrophenyl)azo)-5-(diethylamino)phenyl)acetamide into a DMF solvent, and dissolving by heating to obtain a filter cake solution; (3) slowly adding the complex solution into the filter cake solution, carrying out cyanation, cooling after the cyanation finishes, adding water to separate out cyanide, filtering, washing to obtain a disperse blue 165 coarse filter cake, mixing a mother solution and washing water, and adding sodium hyposulfite to remove toxins and recover the DMF; and (4) adding water, hydrochloric acid and ferric chloride into a toxic removal solution preparation pot to obtain a toxic removal solution, adding water and the disperse blue 165 coarse filter cake into a toxic removal pot, pulping, adding the toxic removal solution to perform toxic removal, filtering, and washing to obtain the disperse blue 165 filter cake. The method has the advantages of safe production technique, complete reaction, fewer side reactions and impurities, and high product quality.
Process for the manufacture of aromatic nitriles
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, (2008/06/13)
Process for the manufacture of aromatic nitriles by reacting an aromatic halogen compound with formaldoxime in the presence of a copper catalyst and an acid-binding agent, preferably a tertiary amine. Particularly applicable to replacement of halogen ortho to the azo linkage of an azo dyestuff by cyano.
