| 释义 |
lead dioxide
\ˈled-\ noun
: a poisonous compound PbO2 that occurs naturally as the mineral plattnerite but is usually obtained as an insoluble brown crystalline powder by oxidation (as by electrolysis) of lead monoxide or lead salts and that forms the active material of the positive plates of lead-lead acid cells and as an oxidizing agent in the dye and chemical industries |