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%。
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.
作者
彭敏
石建新
王周
李莲云
PENG Min;SHI Jianxin;WANG Zhou;LI Lianyun(School of Chemistry,Sun Yat-Sen University,Guangzhou 510275,P.R.China)
出处
《大学化学》
CAS
2019年第9期91-94,共4页
University Chemistry
基金
2017年中山大学校级质量工程项目“重点教材建设项目”
关键词
鸡蛋壳
过氧化钙
Egg shell
Calcium peroxide
