摘要
实验准备过程中配制符合实验要求的各种化学试剂,是完成实验教学任务的重要保证。现有教材及参考资料介绍了许多试剂配制方法,但在实际应用中仍存在一些问题。有些试剂按照常规方法配制,达不到预期的实验效果。特别是易水解盐类、易氧化水解盐类、易分解变质及难溶于水且不能受热等常用试剂,不宜直接加水溶解,需进一步探索改进优化其配制方法。
The preparation of various chemical reagents that meet the experimental requirements during the experimental preparation process is an important guarantee for the completion of experimental teaching tasks.Existing textbooks and reference materials introduce many reagent preparation methods,but there are still some problems in practical applications.Some reagents are prepared according to conventional methods,which cannot achieve the expected experimental results.In particular,commonly used reagents such as easily hydrolyzed salts,easily oxidized and hydrolyzed salts,easily decomposed and deteriorated,are difficult to dissolve in water and cannot be heated,etc.,it is not suitable to directly add water to dissolve,and further exploration is needed to improve and optimize the preparation method.
作者
王文芳
肖建东
王思齐
Wang Wenfang;Xiao Jiandong;Wang Siqi(College of Chemistry and Pharmacy,Northwest A&F University,Yangling 712100;College of Food Science and Engineering,Northwest A&F University,Yangling 712100,China)
出处
《广东化工》
CAS
2021年第22期271-272,共2页
Guangdong Chemical Industry
关键词
无机化学实验
常用试剂
配制
优化
inorganic chemistry experiment
commonly used reagents
preparation
optimization