3270-25-5 Usage
Uses
Used in Textile Industry:
Acid chrome blue K is used as a dye for coloring textiles. It is valued for its ability to produce a vibrant navy blue color and its compatibility with various textile materials.
Used in Analytical Chemistry:
Acid chrome blue K serves as an indicator in acid-base titrations, where it changes color in response to pH changes, aiding in the determination of the endpoint of the titration.
Used in Leather Industry:
In the leather industry, Acid chrome blue K is used as a dye to impart color to leather products, offering a consistent and long-lasting coloration.
Standard:
Acid chrome blue K meets various industry standards for performance, including:
Ironing Fastness: ISO 4-5
Light Fastness: 5
Fulling: 5
Perspiration Fastness: 2-3
Soaping: 4-5
Water: 5
Alkali: 5
Acid: 5
These standards ensure that the dye maintains its color and quality under various conditions, such as exposure to heat, light, water, and chemicals.
Preparation
3-Amino-4-hydroxybenzenesulfonic acid diazotization, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.
Standard
Ironing Fastness
Alkali
Acid
ISO
4-5
Check Digit Verification of cas no
The CAS Registry Mumber 3270-25-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,7 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 3270-25:
(6*3)+(5*2)+(4*7)+(3*0)+(2*2)+(1*5)=65
65 % 10 = 5
So 3270-25-5 is a valid CAS Registry Number.
