单词	manganese dioxide
释义	manganese dioxide noun : a dark insoluble compound MnO2 used especially as an oxidizing agent, as a depolarizer of dry cells, and in making glass and ceramics Example Sentences Recent Examples on the Web When attached at either end to a circuit such as a light bulb, the zinc inside reacts with the manganese dioxide and loses electrons. Manasee Wagh, Popular Mechanics, 13 May 2022 For example, an alkaline battery, or cell, contains zinc, manganese dioxide, and potassium hydroxide. Manasee Wagh, Popular Mechanics, 13 May 2022 In the future, the photographer plans to test out more exotic thermites like bismuth trioxide and manganese dioxide. Wired, 31 Oct. 2019 Word History First Known Use 1866, in the meaning defined above
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