2013•Hydrometallurgy of ChinaRequires access

Synthesis of 5-antipyriylazosalicylfluoroneand and Its Color Rreaction With Vanadium(V)

Hao Deng-yu

Abstract

The 5-antipyriylazosalicylfluoroneand(APASF)was synthesized,and optimum color reaction conditions of 5-antipyriylazosalicylfluoroneand(APASF)with vanadium(Ⅴ)were determined.The results showed that the color reagent reacts with vanadium(Ⅴ)to form a stable claret complex(3∶1)in buffer solution HAc-NH4Ac at pH = 6.8.The maxiumum absorption wavelength and apparent molar absorptivity are 550nm and 3.08×104L·mol-1·cm-1,respectively.The Beer's law is obeyed in the range of 0-30μg/25mL for vanadium(Ⅴ).

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Key concepts: Vanadium, Molar absorptivity, Reagent, Color reaction, Chemistry, Absorption (acoustics), Spectrophotometry, Buffer solution