Item
Excellent grade
Measured Value
appereance
Gray and white flake,dark yellow while storing
First melting point (°C) ≥
120.0
121.0
Beta-naphthol content (%) ≥
99.1
Alpha-naphthol content (%) ≤
0.25
Water content (%) ≤
0.1
0.08
Tangshan Baotie Coal&Chemical co.,ltd
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