|
| 2-Naphthalenesulfonic acid, 5-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-6-hydroxy-, disodium salt Basic information |
| 2-Naphthalenesulfonic acid, 5-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-6-hydroxy-, disodium salt Chemical Properties |
| 2-Naphthalenesulfonic acid, 5-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-6-hydroxy-, disodium salt Usage And Synthesis |
Preparation | 5-Acetamido-8-amino-2-naphthalenesulfonic acid?diazo, and Naphthalen-1-amine coupling, product to diazo, and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then hydrolysis acetyl amino. | Properties and Applications | dark blue. Soluble in water for dark red light blue, not soluble in alcohol. The strong sulfuric acid in the navy for, for the red light purple diluted. The dye solution with 10% sulfuric acid micro turn dark; Add thick tiny change sodium hydroxide solution green.
Standard
|
Acid Resistance
|
Alkali Resistance
|
Light Fastness
|
Soaping
|
Water
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
4
|
4
|
3
|
3-4
|
|
4-5
|
|
|
| 2-Naphthalenesulfonic acid, 5-[[4-[[4-amino-6(or 7)-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-6-hydroxy-, disodium salt Preparation Products And Raw materials |
|