37279-54-2

Basic information

• Product Name: disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)
• Synonyms: Cuprate(2-), .mu.-7,7-iminobis4-(hydroxy-.kappa.O)-3-2-(hydroxy-.kappa.O)-5-(methylamino)sulfonylphenylazo-.kappa.N1-2-naphthalenesulfonato(6-)di-, disodium;Direct violet 48 (C.I. 29125);Cuprate(2-), [μ-[[7,7'-iminobis[4-hydroxy- 3-[[2-hydroxy-5-[(methylamino)sulfonyl]phenyl ]azo]-2-naphthalenesulfonato]](6-)]]di-, disodium;disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-);DIRECT VIOLET 48
• CAS NO: 37279-54-2
• Molecular Formula: C34H23Cu2N7O14S4.2Na
• Molecular Weight: 1054.93
• EINECS: 253-441-8
• Product Categories: Organometallics
• Mol File: 37279-54-2.mol
• Article Data: 0

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)(CAS DataBase Reference)
• NIST Chemistry Reference: disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)(37279-54-2)
• EPA Substance Registry System: disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)(37279-54-2)

Safety Data

• Hazardous Substances Data: 37279-54-2(Hazardous Substances Data)

Usage

Description

Disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is a complex organic compound with a unique chemical structure. It is characterized by its blue-purple color, with a dark purple powder form. disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is soluble in water, resulting in a purple solution, and in ethanol, giving a red light purple color. It is insoluble in other organic solvents. When the dye solution is treated with strong sulfuric acid, it turns black light purple, and when diluted, it resembles red wine. The addition of strong hydrochloric acid to the dye solution results in a claret color and precipitation, while the addition of a thick sodium hydroxide solution maintains the purple color with some precipitation. disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is water-soluble and sensitive to acid, alkali, and fights. It does not change color in the presence of copper and iron ions.

Uses

1. Used in Textile Industry:
Disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is used as a dye for cotton, viscose, and silk in dyeing and printing processes. Its unique color properties and solubility characteristics make it a suitable choice for these applications.
2. Used in Leather Industry:
disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is also used for leather shading, providing a consistent and vibrant color to the material.
3. Used in Paper Industry:
In the paper industry, disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) is utilized for shading and coloring purposes, offering a distinct color to the final product.
4. Used as Organic Pigments:
The heavy metal salts of disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) can be used as organic pigments in various applications, taking advantage of their color properties and stability.
Standard:
disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) has been tested for various properties, including acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading. The results are as follows:
Acid Resistance: ISO 3-4, AATCC 4-5
Alkali Resistance: ISO 4, AATCC 5
Light Fastness: ISO 6, AATCC 5
Soaping: ISO 3, AATCC 1
Water Fading: ISO 2-3, AATCC 3
Stain Fading: Not provided
These standards indicate the performance and durability of disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-) in different conditions, making it a valuable compound for various industrial applications.

Preparation

3-Amino-4-hydroxy-N-methylbenzenesulfonamide (2 Moore) diazo, and Bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine coupling, and then use the ammonia containing copper sulfate solution processing, make it a double copper complex.

Standard

Acid Resistance

Fading

Stain

ISO

3-4

AATCC

4-5