ChemicalBook Product Catalog Dyes and Pigments dye Acid dye Acid Black 2

Acid Black 2

Acid Black 2 Basic information
Product Name:Acid Black 2
Synonyms:ACID BLACK 2;ACID BLACK;NIGROSINE, WATER SOLUBLE, CERTIFIED, PURE;Nigrosine G;Nigrosine WSJ;Nigrosine (acid black 2);Nigrosine,pure,water soluble;Nigrosine,pure,water soluble, certified
CAS:8005-03-6
MF:NULL
MW:0
EINECS:616-852-7
Product Categories:Azine;Staining Solutions for Capsule StainingMicroscopy Reagents and Kits;Staining Solutions for Negative Staining;Microscopy Reagents and Kits;Staining Solutions
Mol File:Mol File
Acid Black 2 Structure
Acid Black 2 Chemical Properties
storage temp. Store at RT.
solubility H2O: soluble
form powder
color Red-black to black
Water Solubility SOLUBLE
λmax570 nm
Stability:Stable. Combustible. Incompatible with strong oxidizing agents.
Biological ApplicationsDiagnostic assay; rodenticide
LogP1.468 (est)
EPA Substance Registry SystemC.I. Acid Black 2 (8005-03-6)
Safety Information
Hazard Codes Xi,T
Risk Statements 43-45
Safety Statements 36/37-24/25-24-22-45-53
WGK Germany 3
RTECS GC4762250
TSCA Yes
HS Code 32041200
Hazardous Substances Data8005-03-6(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Nigrosine English
SigmaAldrich English
ACROS English
ALFA English
Acid Black 2 Usage And Synthesis
Chemical Propertiesblack crystals or powder
UsesIt is employed as a common biological stain for tissues and cells. Used to make inks and shoe-polish and for dyeing leather, wood, textiles, and plastics. The crude mixture of nigrosine hydrochlorides (Phenol Black L) is used to dye phenolic resins. Bases are used to make printing colors and to dye plastics. It finds its use in Dorner?s spore stain, as a negative stain in place of India ink for spirochetes, bacteria, protozoa and fungi. It is also used in compounding resins include phenolic resins, styrenics, polyamides and urea resins.
DefinitionChEBI: Amido Black 10B is an organic sodium salt resulting from the formal condensation of Amido Black 10B (acid form) with two equivalents of sodium hydroxide. It has a role as a histological dye. It contains a 4-amino-5-hydroxy-3-[(p-nitrophenyl)azo]-6-(phenylazo)-naphthalene-2,7-disulfonate.
Preparationwill all grades of alcohol solution aniline Black (C.I.Solvent Black 5, C.I. 50415) stlfonation, again into their products for all kinds of sodium salt.
Properties and Applicationsblack. Black with flash in the granular, a violet is soluble in water, soluble in ethanol is blue. The strong sulfuric acid dyes is blue, it will be diluted and the generated purple precipitation. Blue light purple in aqueous solution, and sodium hydroxide show dark purple precipitation. Mainly used for leather dyeing. Also applies to paper, wood, soap, electrical-controlled aluminum, wool and silk dyeing of content, but also can be used in the manufacture of ink.
Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5 4 4
Acid Black 2 Preparation Products And Raw materials
Raw materialsSodium hydroxide-->Sulfuric acid-->Aniline-->Nitrobenzene-->Cresol-->Nitrophenol-->SOLVENT BLACK 5
ACID BLACK,ACID BLACK 1 Acid Black 158 C.I.Acid Black 16 C.I.Acid Black 26:2 Ethyl 2-(Chlorosulfonyl)acetate ACID BLACK 194 Folic acid C.I.Acid Black 109 Acid Black 210 C.I.Acid Black 7,C.I.26300Acid Black 7,Acid Black D ACID BLACK 24 C.I.Acid Black 47,Acid Black 47,C.I.Acid Black 72 C.I.Acid Black 23 phosphoric acid (3-THIOPHEN-2-YLMETHYL-5-THIOXO-1,5-DIHYDRO-[1,2,4]TRIAZOL-4-YL)-ACETIC ACID C.I.Acid Black 173 C.I.Acid Black 157 Acid Black 2
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