trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

CAS NO.：57693-14-8
Empirical Formula: C40H20CrN6NaO14S2(-2)
Molecular Weight: 947.73
MDL number: MFCD00278934
EINECS: 260-906-9
SAFETY DATA SHEET (SDS)
Update Date: 2024-12-18 14:08:57

What is trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)?

The Uses of trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

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

Non flammable

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
Standard	Light Fastness	Fading	Stain	Persperation Fastness	Fading	Stain	Fading	Stain
ISO	7	4-5		5			5

Properties of trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

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℃
EPA Substance Registry System	Chromate(3-), bis[3-(hydroxy-.kappa.O)-4-[2-[2-(hydroxy-.kappa.O)-1-naphthalenyl]diazenyl-.kappa.N1]-7-nitro-1-naphthalenesulfonato(3-)]-, sodium (1:3) (57693-14-8)

Safety information for trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

Computed Descriptors for trisodium bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-7-nitronaphthalene-1-sulphonato(3-)]chromate(3-)

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ACID RED 195