大学化学 >> 2019, Vol. 34 >> Issue (9): 91-94.doi: 10.3866/PKU.DXHX201903014

化学实验 上一篇    下一篇

过氧化钙制备实验的改进——以鸡蛋壳为原料

彭敏,石建新*(),王周,李莲云   

  • 收稿日期:2019-03-08 录用日期:2019-04-08 发布日期:2019-04-17
  • 通讯作者: 石建新 E-mail:cessjx@mail.sysu.edu.cn
  • 基金资助:
    2017年中山大学校级质量工程项目“重点教材建设项目”

Improvement of the Experiment for Synthesis of Calcium Peroxide Using Egg Shells

Min PENG,Jianxin SHI*(),Zhou WANG,Lianyun LI   

  • Received:2019-03-08 Accepted:2019-04-08 Published:2019-04-17
  • Contact: Jianxin SHI E-mail:cessjx@mail.sysu.edu.cn
  • Supported by:
    2017年中山大学校级质量工程项目“重点教材建设项目”

摘要:

从提高学生环保意识和激发学生实验兴趣出发,以鸡蛋壳代替氯化钙为原料制备过氧化钙。设计蛋壳预处理过程,提出适合学生操作的由蛋壳制备氯化钙溶液的步骤。优化了教材方案中的双氧水和氨水用量。最终产品无水过氧化钙的产率在70%左右,纯度大于75%。

关键词: 鸡蛋壳, 过氧化钙

Abstract:

Instead of calcium chloride, we used egg shells as material in the experiment for synthesis of calcium peroxide. This could help to improve students' environmental consciousness and stimulate students' interest in experiment. We designed procedures for egg shells pre-treatment and the synthesis of calcium peroxide, which were suitable for students. The amount of hydrogen peroxide and ammonia was optimized. The yield of anhydrous calcium peroxide was about 70% with a great than 75% purity.

Key words: Egg shell, Calcium peroxide

MSC2000: 

  • G64