12236-77-0 Usage
Preparation
4-Amino-3-hydroxy-7-nitronaphthalene-1-sulfonic acid diazo, and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling, and 2,4,6-Trichloro-1,3,5-triazine condensation, again ammoniation, make its forming metal complex (metal is the mixture of cobalt and chromium, also can use when complexation 2-Hydroxybenzoic acid).
Properties and Applications
black. Dark brown evenly powder. Solubility of 70 g/L (50 ℃). The strong sulfuric acid in blue, diluted for purple; Rare hydrochloric acid and sodium hydroxide solution in color. Used for cotton, hemp, polyamide fiber and viscose fabric such as printing and dyeing, not suitable for discharge.
Standard
Light Fastness
Oxygen bleaching
Persperation Fastness
Soaping
Fading
Stain
Fading
Stain
Fading
Stain
ISO
6
4-5
4-5
3-4 (
green
)
4-5
5(5*100℃)
4-5
Standard
Light Fastness
Fading
Stain
ISO
6
Check Digit Verification of cas no
The CAS Registry Mumber 12236-77-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,3 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12236-77:
(7*1)+(6*2)+(5*2)+(4*3)+(3*6)+(2*7)+(1*7)=80
80 % 10 = 0
So 12236-77-0 is a valid CAS Registry Number.