| EDTA络合滴定法快速测定铝合金中镁 |
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| 引用本文： | 徐敏 刘元秀. EDTA络合滴定法快速测定铝合金中镁[J]. 山东冶金, 1997, 19(3): 49-50 |
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| 作者姓名： | 徐敏 刘元秀 |
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| 作者单位： | 莱芜钢铁总厂技术监督处 |
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| 摘 要： | 在Ｈ２Ｏ２存在下，以ＴＥＡ、ＥＤＴＡ掩蔽铁、锰、铜等干扰元素，镁在ｐＨ值大于１２的ＮａＯＨ溶液中生成Ｍｇ（ＯＨ）沉淀，借此镁与其干扰元素分离，将Ｍｇ（ＯＨ）２以ＨＣｌ溶解后，调试液ｐＨ值１２￣１４时，用ＥＤＴＡ滴定镁，该法快速，准确。
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| 关 键 词： | 铝合金 三乙醇胺 EDTA 镁 络合滴定法 |
Quick Determining Mg in Aluminium Alloy Used of EDTA Complexometric Titration |
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| Xu Min,Liu Yuanxiu. Quick Determining Mg in Aluminium Alloy Used of EDTA Complexometric Titration[J]. Shandong Metallurgy, 1997, 19(3): 49-50 |
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| Authors: | Xu Min Liu Yuanxiu |
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| Affiliation: | The Technical Supervision Department of Laiwu Iron and Steel General Works |
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| Abstract: | In the condition of existed water,using of TEA,EDTA to cover Fe,Mn,Cu interference elements,the Mg can generate deposition of Mg(OH) 2 in NaOH solution,which pH value is larger than 12,thus Mg can separate with interference elements To solve Mg(OH) 2 with HCl solution and to set pH value of solution in limite of 12-14,the Mg can be titrated by EDTA This method is quick and correct |
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| Keywords: | aluminium alloy titrating Mg by EDTA triethanolamine |
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