Other Name: C.I. 37530; Diathol OL; Naphtol AS-OL; 3-Hydroxy-2-naphthoic acid o-aniside; 3-Hydroxy-2'-methoxy-2-naphthanilide; Amarthol AS-OL
CAS No: 135-62-6
Molecular Formula: C18H15O3N
Molecular Weight: 293.34
Phsical and chemical properties:
The appearance is buff brown uniform powder. Initial melting point is 167 . Insoluble in water. Soluble in alcohol. It is yellow transparent solution is sodium hydroxide solution.
Specification:
|
|
Grade A |
Grade B |
|
Appearance |
Brown to cream-colored uniform powder |
Brown to cream-colored uniform powder |
|
Shade |
Similar to the standard |
Similar to the standard |
|
I.M.P of dry product |
160 |
159.5 |
|
Contact |
98% |
97% |
|
Content of bon acid |
0.1% |
0.3% |
|
Insolubles in alkali solution |
0.3% |
0.6% |
|
Fineness(resdiue on sieve of 60 mesh) |
5% |
5% |
Application:
For producing insoluble azoic dyestuff and dyeing of cotton fiber and viscose fiber
Packing: Woven bag, kraft paper bag, fiber drum or iron drum all package lined with plastic bag net