57693-14-8

Basic information

• Product Name: trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)
• Synonyms: trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-);Neutlan Black A;Acid Black 194, Dry Crude;Chromate(3-), bis3-(hydroxy-.kappa.O)-4-2-(hydroxy-.kappa.O)-1-naphthalenylazo-.kappa.N1-7-nitro-1-naphthalenesulfonato(3-)-, trisodium;C.I.ACIDBLACK172;Trinatriumbis(3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitronaphthalin-1-sulfonato(3-))chromat(3-);Chromate, bis[3-hydroxy-4-[(2-hydroxy-1-naphthaleneyl)azo]-7-nitro-1-naphthalenesulfonato]-, trisodium;Chromate, bis[3-hydroxy-4-[(2-hydroxy-1-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonato]-, trisodium
• CAS NO: 57693-14-8
• Molecular Formula: C40H20CrN6O14S2.3Na
• Molecular Weight: 993.71
• EINECS: 260-906-9
• Product Categories: Organometallics
• Mol File: 57693-14-8.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• Density: 1539[at 20℃]
• Vapor Pressure: 0Pa at 25℃
• Solubility: 2.46g/L in organic solvents at 20 ℃
• PKA: 9.34[at 20 ℃]
• Water Solubility: 100g/L at 20℃
• CAS DataBase Reference: trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)(CAS DataBase Reference)
• NIST Chemistry Reference: trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)(57693-14-8)
• EPA Substance Registry System: trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)(57693-14-8)

Safety Data

• Hazardous Substances Data: 57693-14-8(Hazardous Substances Data)

Usage

Uses

Acid Black 172 is a water-soluble dye used for leather dying. Acid Black 172 is a water pollutant, and its decolourization has been coupled with bioelectricity generation by Aspergillus niger.

Preparation

4-Amino-3-hydroxynaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling, and then translate into 1:2 chromium complex.

Flammability and Explosibility

Nonflammable

Properties and Applications

black. Dark brown powder, soluble in water. Used for wool, polyamide fiber, silk and their blended fabric dyeing and printing directly, also can used for leather dyeing. Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater Fading Stain Fading Stain Fading Stain ISO 7 4-5 5 5

Standard

Light Fastness

Fading

Stain

ISO

7

InChI:InChI=1/2C20H17N3O7S.Cr.3Na/c2*24-15-9-8-11-4-1-2-5-12(11)19(15)21-22-20-13-6-3-7-14(23(26)27)18(13)17(10-16(20)25)31(28,29)30;;;;/h2*1-3,7-10,14,24-25H,4-6H2,(H,28,29,30);;;;/q;;4*+1/p-4/b2*22-21-;;;;/rC40H30CrN6O14S2.3Na/c48-46(49)27-13-5-11-25-35(27)33(62(52,53)54)19-31-39(25)44-42-37-23-9-3-1-7-21(23)15-17-29(37)58-41(60-31)59-30-18-16-22-8-2-4-10-24(22)38(30)43-45-40-26-12-6-14-28(47(50)51)36(26)34(63(55,56)57)20-32(40)61-41;;;/h1-6,13-20,27-28H,7-12H2,(H,52,53,54)(H,55,56,57);;;/q-3;3*+1/b44-42-,45-43-;;;