82944-43-2 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
Check Digit Verification of cas no
The CAS Registry Mumber 82944-43-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,4 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 82944-43:
(7*8)+(6*2)+(5*9)+(4*4)+(3*4)+(2*4)+(1*3)=152
152 % 10 = 2
So 82944-43-2 is a valid CAS Registry Number.