Direct Black 80

Direct Black 80 - Names and Identifiers

Name	Direct Black 80
Synonyms	Black OB DirectblackOB Direct Black 80 C.I. Direct Black 80 C.I. direct black 80. Direct black 80 (C.I. 31600) trisodium 6-[(7-amino-1-hydroxy-3-sulphonato-2-naphthyl)azo]-3-[[4-[[4-amino-6(or 7)-sulphonatonaphthyl]azo]phenyl]azo]-4-hydroxynaphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 6-(7-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo-3-4-4-amino-6(or 7)-sulfo-1-naphthalenylazophenylazo-4-hydroxy-, trisodium salt 2-Naphthalenesulfonic acid, 6-[(7-amino-1-hydroxy-3-sulfo-2-naphthlenyl)azo]-3-[[4-[[4-amino-6(or7)-sulfo-1-naphthalenyl]azo]phenyl]azo]-4-hydroxy, trisodium salt trisodium 6-amino-3-[(Z)-{7-[(E)-{4-[(Z)-(4-amino-7-sulfonatonaphthalen-1-yl)diazenyl]phenyl}diazenyl]-8-hydroxy-6-sulfonatonaphthalen-2-yl}diazenyl]-4-hydroxynaphthalene-2-sulfonate trisodium,(3Z)-6-amino-3-[[(7Z)-7-[[4-[(4-amino-7-sulfonatonaphthalen-1-yl)diazenyl]phenyl]hydrazinylidene]-8-oxo-6-sulfonatonaphthalen-2-yl]hydrazinylidene]-4-oxonaphthalene-2-sulfonate trisodium 5-amino-8-[(E)-{4-[(2Z)-2-{7-[(2Z)-2-(7-amino-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene)hydrazinyl]-1-oxo-3-sulfonatonaphthalen-2(1H)-ylidene}hydrazinyl]phenyl}diazenyl]naphthalene-2-sulfonate
CAS	8003-69-8
EINECS	232-322-4
InChI	InChI=1/C36H26N8O11S3.3Na/c37-20-3-1-18-13-31(57(50,51)52)33(35(45)26(18)15-20)44-41-23-4-2-19-14-32(58(53,54)55)34(36(46)27(19)16-23)43-40-22-7-5-21(6-8-22)39-42-30-12-11-29(38)25-10-9-24(17-28(25)30)56(47,48)49;;;/h1-17,45-46H,37-38H2,(H,47,48,49)(H,50,51,52)(H,53,54,55);;;/q;3*+1/p-3/b42-39-,43-40+,44-41-;;

Direct Black 80 - Physico-chemical Properties

Molecular Formula	C36H23N8O11S3.3Na
Molar Mass	908.791
Stability	Stable. Incompatible with oxidizing and reducing agents.
Physical and Chemical Properties	Blue-black uniform powder. Soluble in water, aqueous solution is blue-black, add 10% sodium hydroxide solution turn red blue. Insoluble in organic solvents. It is blue in concentrated sulfuric acid, and purple precipitate appears after dilution; Yellow-red solution in concentrated nitric acid; Partially dissolved in concentrated hydrochloric acid, purple.

Direct Black 80 - Reference Information

EPA chemical substance information	information provided by: ofmpeb.epa.gov (external link)
Introduction	direct black OB is soluble in water, solubility is 30g/L, insoluble in acetone. Precipitation; The addition of 10% sulfuric acid turned to light blue, and the addition of 10% sodium carbonate solution did not change. For the dyeing of cellulose fibers, the dye was very good at 80-100 °c. Maximum affinity, acid resistance is very good. It darkened in case of copper, and remained unchanged in case of iron.
Use	direct black OB is mainly used for dyeing cellulose fibers, and can also dye silk in acetic acid or formic acid bath. When used for cellulose fiber and other fibers with Bath dyeing, silk, wool dyed light, acetate fiber does not stain, nylon slightly stained. It can also be used for paper and leather coloring. dyeing for cotton and hemp
production method	with P-aminoacetanilide, Gamma acid, and [1-Naphthylamine -6-(or 7)]-Sulfonic acid] as a raw material, the first aminoacetanilide diazotization, and gamma acid coupling, and then the acetyl group hydrolysis, and then double nitriding, followed by coupling with the cliffic acid, the product is then coupled with another molecule of gamma acid. After salting out, filtration, drying, grinding to get the finished product..

Last Update：2024-04-10 22:29:15

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Direct Black 80
6-[(Phenylmethoxy)methyl]-1,4-dioxane-2-methanol
Piperazinone, 1-(2-pyridinyl) 345310-98-7, Piperazinone, 1-(2-pyrimidinyl) 59637-59-1
1-ethyl-2,3-dimethylimidazol-3-ium
(3-ETHYL-4-FLUOROPHENYL)METHANAMINE
Triaryl Phosphate Isopropylated
吗啉基乙酸乙酯
1-{3-[(4-chlorobenzyl)sulfonyl]-2-hydroxypropyl}-2-pyrrolidinone
谷胱甘肽(还原型)
POTASSIUM HYDROGEN SACCHARATE

Direct Black 80

Direct Black 80

CAS: 8003-69-8

Molecular Formula: C36H23N8O11S3.3Na

Direct Black 80 - Names and Identifiers

Direct Black 80 - Physico-chemical Properties

Direct Black 80 - Reference Information

Supplier List

Direct Black 80 Request for Quotation

Direct Black 80

CAS: 8003-69-8

Molecular Formula: C36H23N8O11S3.3Na

Direct Black 80 - Names and Identifiers

Direct Black 80 - Physico-chemical Properties

Direct Black 80 - Reference Information

Supplier List

Direct Black 80