PAN/1-(2-Pyridylazo)-2-naphthol

English Name: pan; 1-(2-Pyridylazo)-2-naphthol

Other names: α- Pyridylazo- β- Naphthol; Hexyl peroxynitrate; 2-pyridylazo-2-naphthol; 1 - (2-diazopyridine) - 2-naphthol

CAS No.: 85-85-8

C15H11N3O=249.27

Grade: ar

Spectral effective content: ≥ 90.0%

Melting point: 138 ～ 142 ℃ (2 ℃)

Burning residue (calculated by sulfate): ≤ 0.1%

Ethanol dissolution test: acceptable

Physicochemical properties: orange red amorphous powder. It is soluble in methanol, ethanol, benzene, ether, chloroform and hot dilute alkaline solution, but not soluble in water. When the solution is above pH 12, it is pink, orange red in weak acid and purple in concentrated sulfuric acid. The metal complex is pink or red. The maximum absorption wavelength is 462nm. Irritating

Purpose: biochemical research. Complexation indicator for titration of bismuth, cadmium, copper, gallium, indium, lanthanide, nickel, lead, thorium, thallium (III), uranium and zinc. Precipitation enrichment of trace metals. Photometric determination of cobalt, copper, trivalent iron, gallium, mercury, indium, iridium, manganese, nickel, lead, palladium, rhodium, ruthenium, antimony, titanium, uranium, vanadium, zinc, zirconium and Lanthanides

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