Product: 2,3 Acid
Chemical name: 3-Hydroxy-2-naphthoic acid
CAS NO: 92-70-6
Molecular formula: C11H8O3
Structure formula:
Properties:
Light yellow powder, melting point 217-223°C, soluble in ethanol, ether, benzene and soluble in alkaline solution, insoluble in water..
Application:
Mainly used to produce Naphthol AS and other Naphthols intermediates, also used to medical and pigment intermediates.
Specification:
|
Items
|
Refined Grade
|
Common Grade
|
|
Purity,%
|
99 min.
|
98.5 min.
|
|
1,2 Acid,%
|
0.25 max.
|
0.5 max.
|
|
2-Naphthol,%
|
0.2 max.
|
0.5 max.
|
|
Moisture,%
|
0.15 max.
|
0.3 max.
|
|
Ash,%
|
0.3 max.
|
0.5 max.
|
|
Insolubles in NaOH,%
|
0.1 max.
|
0.2
|
|
