1934-20-9 Usage
Chemical Properties
orange-red powder
Preparation
aniline diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling.
Properties and Applications
bright orange. Soluble in water for gold orange, slightly soluble in ethanol for gold orange, slightly soluble in acetone and soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid for gold in orange, diluted colour and lustre is unchanged; In nitric acid by brown in a red. Its water solution to join strong hydrochloric acid for gold orange; Add 10% of sodium carbonate solution color unchanged; Add thick sodium hydroxide solution for palm orange. Used for wool, silk, cotton, vinegar fiber etc of fiber dyeing and printing directly. Also used for paper, leather and biological dyeing, also used as indicator.
Standard
Light Fastness
Soaping
Persperation Fastness
Oxygen bleaching
Fastness to seawater
Fading
Stain
Fading
Stain
Fading
Stain
ISO
4
1
2
2-3
1
2
2-3
1
AATCC
4
2-3
2-3
2
1
4
Standard
Light Fastness
Fading
Stain
ISO
4
AATCC
4
Check Digit Verification of cas no
The CAS Registry Mumber 1934-20-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,3 and 4 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1934-20:
(6*1)+(5*9)+(4*3)+(3*4)+(2*2)+(1*0)=79
79 % 10 = 9
So 1934-20-9 is a valid CAS Registry Number.
InChI:InChI=1/C16H12N2O4S.Na/c19-15-9-6-11-10-13(23(20,21)22)7-8-14(11)16(15)18-17-12-4-2-1-3-5-12;/h1-10,17H,(H,20,21,22);/q;+1/p-1/b18-16-;
