Direct Blue 82
- Molecular Weight: 0
What is Direct Blue 82?
Preparation
2-Aminobenzene-1,4-disulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and Naphthalen-1-amine coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
blue. For blue is soluble in water, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for violet black, diluted for purple. The dye water solution is blue, with strong hydrochloric acid have dark violet blue precipitation; Add thick sodium hydroxide solution have red light purple precipitation.
Standard | Acid Resistance | Alkali Resistance | Light Fastness | Soaping | Water | ||
Fading | Stain | Fading | Stain | ||||
AATCC | 4 | 4-5 | 5 | 1-2 | 1-2 |
Safety information for Direct Blue 82
New Products
(R)-3-Aminobutanenitrile Hydrochloride 4-Aminotetrahydropyran-4-carbonitrile Hydrochloride 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID HCL 4-AMINO-TETRAHYDRO-PYRAN-4-CARBOXYLIC ACID 1,4-Dioxa-8-azaspiro[4.5]decane 5-Bromo-2-nitropyridine SODIUM AAS SOLUTION ZINC AAS SOLUTION BUFFER SOLUTION PH 10.0(BORATE) GOOCH CRUCIBLE SINTERED AQUANIL 5 BERYLLIUM AAS SOLUTION XANTHAN GUM Racecadotril SODIUM VALPROATE Diclofenac Sodium Methylcobalamin (vitamin B12) SODIUM METHYL PARABEN Folic Acid Impurity G Dabigatran Acyl-O2-D-Glucuronide Trifluoroacetic Acid Salt Glycopyrronium Bromide EP Impurity I Eltrombopag N-Oxide Impurity Di-Nitroso Acyclovir Impurity K DLRD N-OxideRelated products of tetrahydrofuran
tetrasodium [mu-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
Direct blue 83 (C.I. 34230)
C.I. Direct Blue 85
DIRECT BLUE 80
Direct blue 9 (C.I. 24155)
DIRECT BLUE 90
trisodium [29H,31H-phthalocyaninetrisulphonato(5-)-N29,N30,N31,N32]cuprate(3-)
SIRIUS SUPRA BLUE
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