| 光谱学与光谱分析 |
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| A New Method for the Preparation of Potassium Ferrate and Spectroscopic Characterization |
| ZHENG Huai-li1, 2, DENG Lin-li3, JI Fang-ying1, JIANG Shao-jie2, ZHANG Peng2 |
1. Key Laboratory of the Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400045, China
2. Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 400045, China
3. College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China |
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Abstract Calcium hypochlorite was used as the raw material for preparation of the high purity potassium ferrate. The study includes the effects of reaction temperature, recrystallization temperature, reaction time, Ca(ClO)2 dosage, and the amount of calcium hypochlorite on the yield. It was determined that when the reaction temperature was 25 ℃, recrystallization temperature 0 ℃ and reaction time 40 min, the yield was more than 75%. The purity was detected by direct spectrophotometric method to be more than 92%. The product was characterized by infrared spectrum(IR), X-ray diffraction (XRD) and ultraviolet spectrum (UV) methods and proved to be potassium ferrate that was prepared by calcium hypochlorite as the raw material.
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Received: 2009-11-02
Accepted: 2010-02-06
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Corresponding Authors:
ZHENG Huai-li
E-mail: zhl6512@126.com; zhenghl@cat.cq.cn
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