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Chem. J. Chinese Universities ›› 1986, Vol. 7 ›› Issue (10): 886.

• Articles • Previous Articles     Next Articles

The Synthesis of Meso-Tetrakis-(4-Acetyloxylphenyl) Porphine and the Spectrophotometric Study of Its Colour Reaction with Lead

Wang Dongjin1, Jin Changming1, Chen Tianfu1, Huang Zexing2, He Shuqiong2   

  1. 1. Department of Chemistry, Fuzhou University, Fuzhou;
    2. Department of Chemistry, Huaqiao University, Quanzhou
  • Received:1985-08-08 Online:1986-10-24 Published:1986-10-24

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Abstract: The water-insoluble porphine,meso-tetrakis-(4-acetyloxylphenyl)porphine(T(4-AOP)P),has been synthesized and its colour reaction with lead(Ⅱ)has been studied.The lead(Ⅱ)complex was formed in the presence of sodium dode-cyl sulfate.The complex formation was slow at room temperature,however,it could be accelerated by heating at 100℃ for 12 min.The soret band of the complex lies at 466nm,which is well separated from that7 of the reagent(420nm)at pH9.5.Apparent molar absorptivity of the complex is 2.6×105 lmol-1 cm-1.Beer's law is obeyed in the rang of 0-6μg/10ml for lead(Ⅱ).Tolerance limits were shown for 24 ions.The method established could be applied to the ditect determination of lead(Ⅱ)in sodium chloride with satisfactory result.

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