过氧化钙制备实验中氨水的用量分析

doi:10.3866/PKU.DXHX201708001

University Chemistry ›› 2018, Vol. 33 ›› Issue (2): 60-64.doi: 10.3866/PKU.DXHX201708001

• Chemistry Laboratory • Previous Articles Next Articles

Investigation of Ammonia Usage in the Experiments of Calcium Peroxide Preparation

Linping QIAN*(),Jinzhi LI,Gengfeng ZHENG,Jianzhong SHEN

Department of Chemistry and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, P. R. China

Received:2017-08-01 Published:2018-01-19
Contact: Linping QIAN E-mail:lpqian@fudan.edu.cn
Supported by:
国家自然科学青年基金(21003024)

Abstract

Abstract:

The ammonia usage in CaO₂ preparation through CaCl₂ and H₂O₂ was investigated by the reaction thermodynamics and the designed experiments. The results show that calcium peroxide production is related with the ammonia usage. When the molar ratio of NH₃/Ca²⁺ is less than 2, CaCl₂ could not converse completely. With the molar ratio of NH₃/Ca²⁺ reaching 2, high amount of CaO₂ and small amount of Ca(OH)₃ were achieved. This molar ratio of 2 is suggested to be reasonable in the CaO₂ preparation design.

Key words: Calcium peroxide, Ammonia, Hydrogen peroxide, Calcium chloride

Linping QIAN,Jinzhi LI,Gengfeng ZHENG,Jianzhong SHEN. Investigation of Ammonia Usage in the Experiments of Calcium Peroxide Preparation[J].University Chemistry, 2018, 33(2): 60-64.

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Investigation of Ammonia Usage in the Experiments of Calcium Peroxide Preparation

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