Test Items | Standand |
Appearance | Grayish-white flake solid |
GC purity | 99.5% min |
Solidifying point | 94.5ºC min |
2-Napthol | 0.1% max |
Lowing boiling matter | 0.1% max |
High boiling matter | 0.1% max |
1,6-Dihydroxynaphthalene | 100ppm max |
1,7-Dihydroxynaphthalene | 200ppm max |