Molecular formula: CHO
Molecular weight: 188.2
Uses: intermediate used to produce Naphthol AS and other Naphthols, also intermediate of pharmaceutical and organic pigment.
Specifications:
Items |
Excellent grade |
First grade |
| Appearance |
Pale yellow powder |
Pale yellow powder |
| Assay% ≥ |
99 |
98.5 |
| Melting point of dry product ºC ≥ |
218 ºC |
217.5 ºC |
| Insoluble in sodium bicarbonate% ≤ |
0.05 |
0.1 |
| Moisture % ≤ |
0.1 |
0.15 |
| 2.6 acid% ≤ |
0.09 |
0.1 |
| 2.3.6 acid% ≤ |
0.08 |
0.1 |
| 2-naphthol% ≤ |
0.4 |
0.5 |
Packing: plastic lined woven bag, 25kg each. |
