High Quality Acid Yellow 4g - Offer Acid Black 10B at good price –

Color Shade	Product Name	Content	Dyeing Depth（%o.w.f）
	Acid Black 10B	120%	3.0

Synonyms:C.I. 20470; C.I. Acid Black 1; C.I. Acid Black 1, disodium salt; C.I. Acid Black 1 (7CI); C.I. Acid Black 1, disodium salt (8CI); 4-Amino-5-hydroxy-3-(p-nitrophenylazo)-6-(phenylazo)-2,7-naphthalenedisulfonic aci; Amido Schwarz; Aniline Blue Black; Acid Black 1; amido black staining solution*electrophoresis rea; Acid Black 1 (C.I.); sodium 4-amino-5-hydroxy-3-(4-nitrophenylazo)-6-(phenylazo)naphthalene-2,7-disulphonate; Naphthalene black 10B; Acid Black 2 (20470); Amido Black 10B; Naphthol Blue Black; CI 20470; Naphthaleneblackamidoschwarz; disodium 4-amino-5-hydroxy-3-[(E)-(4-nitrophenyl)diazenyl]-6-[(E)-phenyldiazenyl]naphthalene-2,7-disulfonate; disodium (3Z)-5-amino-6-[(E)-(4-nitrophenyl)diazenyl]-4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2,7-disulfonate

InChI:InChI=1/C22H16N6O9S2.2Na/c23-19-18-12(11-17(39(35,36)37)21(22(18)29)27-24-13-4-2-1-3-5-13)10-16(38(32,33)34)20(19)26-25-14-6-8-15(9-7-14)28(30)31;;/h1-11,24H,23H2,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b26-25+,27-21+;

Property of Acid Black 10B:
Appearance:dark brown powder
Odor: Odorless
Physical and chemical property:
melting point:>350℃
Water solubility: 10g/L (30°C)
Density:1.05g/mL at 20 °C
Flashing point:30 °C
pH Value:9.0 (10g/l, H2O, 25℃)
BRN : 5374263
Stability:Stable. Incompatible with strong oxidizing agents.
Soluble in water, the aqueous solution is blue black, and green light and blue precipitation are produced by adding concentrated hydrochloric acid; Add sodium hydroxide solution to produce blue precipitation. Soluble in ethanol, blue, slightly soluble in acetone, insoluble in other organic solvents. It is blue-green chemicalbook in concentrated sulfuric acid and produces dark green blue precipitation after dilution; After dark green solution in concentrated nitric acid, it turns into sauce red; Blue precipitate is produced in 10% sodium hydroxide solution. When dyeing, the color luster changes slightly in case of copper ion; In case of iron ion, the color is slightly light green.

Application:Acid black 10B is a dark bisazo dye with good application performance. It is mainly used for dyeing wool, silk and leather. It can be mixed with acid orange II to form an important black dye, Acid Black ATT, which is an excellent variety for dyeing leather.

Storage:store in a cool and ventilated room.
Quality guarantee period: 36 months.
Packing: 25kgs drum/paper carton/bag