We are manufacturer of PAN,our prices is the most reasonable,our quality is the most qualifie. 1-(2-PYRIDYLAZO)-2-NAPHTHOL.Content (Spectrophotome…
We are manufacturer of PAN,our prices is the most reasonable,our quality is the most qualifie. 1-(2-PYRIDYLAZO)-2-NAPHTHOL.Content (Spectrophotometric)≥90%.Melting point 138~142(2°C).Appearance of solution Conforms.Suitability as indicator(for metal titration) Conforms.Sulfated ash ≤0.1%.
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