| 用于红外光谱分析的溴化钾的提纯 |
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| 引用本文： | 宋诚,朱鹏飞,刘梅. 用于红外光谱分析的溴化钾的提纯[J]. 光谱实验室, 2011, 28(5): 2590-2593 |
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| 作者姓名： | 宋诚 朱鹏飞 刘梅 |
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| 作者单位： | 西南石油大学化学化工学院 成都市新都区新都大道8号西南石油大学硕09级8班610500 |
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| 基金项目： | 四川省高等教育人才培养质量和教学改革项目“依托国家级实验教学中心,构建化学化工类应用型人才实验教学体系的研究与实践”(P09163) |
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| 摘 要： | 分析纯溴化钾的红外光谱中通常含有杂质产生的强干扰吸收带,不能直接作为红外光谱分析用的试剂。以乙二胺四乙酸（EDTA）为螯合剂,与分析纯溴化钾中的杂质生成水溶性络合物,通过重结晶、高温焙烧,去除了溴化钾中的杂质,得到了高纯度的溴化钾。实验结果表明,该溴化钾的光谱纯度优于市面上价格昂贵的光谱纯溴化钾,获得了更高质量的红外光谱图,降低了红外光谱实验的成本。
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| 关 键 词： | 乙二胺四乙酸 溴化钾 高温焙烧 |
Purification of Potassium Bromide Used for Infrared Spectral Analysis |
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| SONG Cheng,ZHU Peng-Fei,LIU Mei. Purification of Potassium Bromide Used for Infrared Spectral Analysis[J]. Chinese Journal of Spectroscopy Laboratory, 2011, 28(5): 2590-2593 |
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| Authors: | SONG Cheng ZHU Peng-Fei LIU Mei |
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| Affiliation: | SONG Cheng ZHU Peng-Fei LIU Mei(College of Chemical Engineering,Southwest Petroleum University,Chengdu 610500,P.R.China) |
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| Abstract: | The infrared spectrum of analytical pure potassium bromide generally has the strong interference absorption band that was occurred by impurity,and the analytical pure potassium bromide is directly as reagents used for infrared spectral analysis.With EDTA as chelant,the impurity of analytical pure potassium bromide with EDTA formed water-solution complex,and the impurity of potassium bromide was removed via the recrystallization and high temperature roasting,then high purity potassium bromide was obtained.Th... |
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| Keywords: | EDTA Potassium Bromide High Temperature Roasting |
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