|
|
| | disodium 7,7'-(carbonyldiimino)bis[3-[(3-aminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate] Basic information |
| | disodium 7,7'-(carbonyldiimino)bis[3-[(3-aminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate] Chemical Properties |
| | disodium 7,7'-(carbonyldiimino)bis[3-[(3-aminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate] Usage And Synthesis |
| Preparation | N-(3-aminophenyl)formamide (2 Moore) diazo, and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, and then hydrolysis formex amino. | | Properties and Applications | red. Soluble in water for red, slightly soluble in alcohol for Shallow red brown, insoluble in other organic solvents. The strong sulfuric acid for quality in red, with golden yellow to orange after diluted, orange precipitation; In nitric acid for red brown, then to yellow. The dye solution to join strong hydrochloric acid have brown light orange precipitation; Add thick sodium hydroxide solution for orange brown.
|
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
|
Fading
|
Stain
|
Fading
|
Stain
|
|
ISO
|
3-4
|
5
|
2
|
4
|
|
4
|
|
|
AATCC
|
5
|
4
|
2
|
4-5
|
|
5
|
|
|
| | disodium 7,7'-(carbonyldiimino)bis[3-[(3-aminophenyl)azo]-4-hydroxynaphthalene-2-sulphonate] Preparation Products And Raw materials |
|