12677-16-6 Usage
Description
Reactive Blue 74 is a dark blue powder that exhibits bright blue color when dissolved in water. It undergoes color changes when exposed to different acids, such as turning blue-black in strong sulfuric acid and brown in nitric acid. The dye is characterized by its solubility, which increases with temperature, and its ability to produce a light blue color on fabrics. It is a reactive dye that forms covalent bonds with fibers, making it suitable for various dyeing and printing applications.
Uses
Used in Textile Industry:
Reactive Blue 74 is used as a dye for cotton or viscose fabrics. It is suitable for different dyeing techniques, such as disperse, roll, padding, and continuous dyeing processes. The dye provides good color fastness properties, including light fastness (ISO 6-7), oxygen bleaching (4-5), perspiration fastness (4-5), and soaping (4-5). However, it exhibits poor fastness to fading and staining in neutral and alkaline conditions (1-2 grade).
Preparation
1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid and 3,5-Diamino-2,4,6-trimethylbenzenesulfonic acid?condensation, ?and 2,4,6-Trichloro-1,3,5-triazine condensation, then ethoxylated.
Standard(cellulose)
Light Fastness
Fading
Stain
ISO
6-7
Check Digit Verification of cas no
The CAS Registry Mumber 12677-16-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,6,7 and 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 12677-16:
(7*1)+(6*2)+(5*6)+(4*7)+(3*7)+(2*1)+(1*6)=106
106 % 10 = 6
So 12677-16-6 is a valid CAS Registry Number.
