| 1-(2,3,5-三氮唑偶氮)-2-萘酚的合成及其与镍的显色反应研究 |
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| 引用本文： | 蒋华江,叶巧云.1-(2,3,5-三氮唑偶氮)-2-萘酚的合成及其与镍的显色反应研究[J].化学世界,2001,42(11):579-581. |
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| 作者姓名： | 蒋华江 叶巧云 |
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| 作者单位： | 浙江台州师范专科学校, |
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| 基金项目： | 浙江省教育委员会科研启动基金资助课题 ( 972 0 1) |
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| 摘 要： | 合成了 1 - ( 2 ,3,5 -三氮唑偶氮 ) - 2 -萘酚 (简称 TZAN) ,研究了它与镍的显色反应。结果表明 :在 p H7.0～ 8.0的水溶液中镍与 TZAN形成一种稳定的红色配合物 ,其最大吸收波长位于5 2 8.8nm处 ,表观摩尔吸光系数ε=3.40× 1 0 4 L /mol· cm,配合物的组成 Ni2 + ∶ TZAN=1∶ 2。镍浓度在 0～ 1 .2 mg/L范围内服从比尔定律。在氟化铵和硫脲的存在下 ,可直接测定合金中的微量镍
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| 关 键 词： | 1-(2 3 5-三氮唑偶氮)-2-萘酚 分光光度法 镍 合成 |
| 文章编号： | 0367-6358(2001)11-0579-03 |
Synthesis of 1-(2,3,5-Triazolyazo)-2-naphthol and its Color Reaction with Nickel |
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| JIANG Hua jiang,YE Qiao yun.Synthesis of 1-(2,3,5-Triazolyazo)-2-naphthol and its Color Reaction with Nickel[J].Chemical World,2001,42(11):579-581. |
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| Authors: | JIANG Hua jiang YE Qiao yun |
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| Abstract: | The synthesis of 1 2,3,5 (Triazolyazo) 2 naphthol (TZAN) and its color reaction with nickel(Ⅱ) were studied. The results show that in the presence of Tween 80 and at pH7.0～8.0, TZAN reacts with Ni(Ⅱ) to form a stable complex (1∶2), the molar absorptivity of the red complex is 3.40×10 4L/(mol·cm) at 528.8 nm. Beer's law is obeyed in the range of 0～1.2 mg/L for nickel. The method has been directly applied to the determination of Ni in samples with satisfactory resullts. |
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| Keywords: | Triazolyazo) 2 naphthol nickel spectrophotometry synthesis |
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