| 单词 | manganese dioxide | 
| 释义 | manganese dioxide [`maŋ·gǝ´nēs dī`äk´sīd]  INORGANIC CHEMISTRY MnO2 A black, crystalline, water- insoluble compound, decomposing to manganese sesquioxide, Mn2O3, and oxygen when heated to 535°C; used as a depolarizer in certain dry-cell batteries, as a catalyst, and in dyeing of textiles. Also known as battery manganese; manganese binoxide; manganese black; manganese peroxide.  | 
	
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