82944-43-2

Basic information

• Product Name: 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt
• Synonyms: 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt;C.I.29102;C.I.Direct Violet 102
• CAS NO: 82944-43-2
• Molecular Weight: 0
• Mol File: 82944-43-2.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(CAS DataBase Reference)
• NIST Chemistry Reference: 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(82944-43-2)
• EPA Substance Registry System: 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt(82944-43-2)

Safety Data

• Hazardous Substances Data: 82944-43-2(Hazardous Substances Data)

Usage

Description

7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is a complex organic compound characterized by its blue-purple color. It exhibits properties such as acid resistance, alkali resistance, light fastness, and the ability to resist fading and staining. These characteristics make it a versatile substance with potential applications in various industries.

Uses

Used in Dye Industry:
7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a dye for its blue-purple color, particularly due to its resistance to acids, alkalis, and light, which ensures its stability and longevity in various applications.
Used in Textile Industry:
In the textile industry, 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a colorant for fabrics. Its resistance to fading and staining makes it suitable for long-lasting coloration in textiles.
Used in Cosmetics Industry:
7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a color additive in cosmetics for its vibrant blue-purple hue. Its light fastness and resistance to fading make it an ideal choice for cosmetic products.
Used in Analytical Chemistry:
In analytical chemistry, 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt can be used as an indicator or reagent due to its color-changing properties in response to different pH levels or chemical interactions.
Used in Art and Crafts:
For art and crafts, 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a pigment in paints and inks. Its acid and alkali resistance, along with its light fastness, ensures that the colors remain vibrant and stable over time.
Used in Paper Industry:
In the paper industry, 7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a colorant for paper products. Its resistance to fading and staining makes it suitable for creating long-lasting colored papers.
Used in Plastics and Polymers Industry:
7,7'-Iminobis[4-hydroxy-3-[(2-hydroxyphenyl)azo]-2-naphthalenesulfonic acid]disodium salt is used as a colorant in the plastics and polymers industry. Its stability under various conditions ensures that the color remains consistent and durable in plastic products.

Preparation

2-Aminophenol (2 Moore) diazo, and Bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine coupling.

Standard

Acid Resistance

Fading

Stain