1. Xuancheng No. 2 Middle School, Xuancheng 242000,China;
2. Department of Education and Sports Administration of Xuancheng Anhui Province, Xuancheng 242000,China;
3. College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
Abstract The influence of peanut oil and kerosene oil on dissolved oxygen in water was measured by optical dissolved oxygen sensor. It was confirmed that neither vegetable oil nor mineral oil could isolate oxygen, but the dissolution rate of oxygen could be significantly reduced. The dissolved oxygen in water or solution could be kept in low concentration for a certain period of time, and vegetable oil was more conducive to maintaining the oxygen deficiency of water samples than mineral oil.
ZHANG Bao-Ding, XU Hong, SHENG Jian-Fa, SHENG En-Hong. On Effect of “Oil Seal Method” on Dissolved Oxygen in Water Sample by Digital Experiment[J]. Chinese Journal of Chemical Education, 2020, 41(15): 54-57.
