Abstract The following problems in traditional experiments of determination of CO2 molecular weight are analyzed, for instance, too much reagent consumption and "three wastes" emissions. Based on green chemistry principle some optimizing schemes, such as purity test with mixed solution of sodium hydroxide and phenolphthalein instead of matches, and gathering gas in injector instead of iodine flask were proposed. The improved experiment meets the requirmends of green chemistry and can make students understand the importance of the ecological environment.
ZHOU Xian-Ya, ZHENG Lei, HUANG Lei, YANG Li, NIE Li, QIN Xing-Xing, WANG Ying, WEI Run-Feng. Improvement of Determination of Relative Molecular Weight of Carbon Dioxide Based on the Green Chemistry[J]. Chinese Journal of Chemical Education, 2019, 40(18): 33-35.