Improvement of Barium Chloride Inspection Method for Sodium Carbonate in Sodium Peroxide
JIANG Bang-Long1, CHEN Yu1, LI Yuan-Rong2*, WANG Qiang2*
1. High School Affiliated to Southwest University, Chongqing 400700, China;
2. College of Teacher Education, Southwest University, Chongqing 400715, China
Abstract The barium chloride method is not only one of the most common methods used by middle school chemistry to test for deterioration of sodium peroxide, but also a common test point for middle school chemistry exams. However, experiments have shown that the barium chloride method has obvious interference. This study uses comparative experiments to clarify the relevant issues and puts forward improved test method. It helps middle school teachers deepen the understanding of the principle of the test method of sodium peroxide, to avoid the misunderstanding of the applicability of this method, and provides a reference for improving the effectiveness of teaching and the scientificity of related test questions.
JIANG Bang-Long, CHEN Yu, LI Yuan-Rong, WANG Qiang. Improvement of Barium Chloride Inspection Method for Sodium Carbonate in Sodium Peroxide[J]. Chinese Journal of Chemical Education, 2021, 42(13): 79-84.
