manganese dioxide
Noun
Meaning
English Wikipedia has an article on:manganese dioxideWikipedia
manganese dioxide (uncountable)
(inorganic chemistry) The chemical compound MnO2; a brown or black solid used as a component of dry cell batteries.
Synonyms
Examples
Accordingly, manganese dioxide catalyses this reaction.
In 2002, more than 230,000 tons of manganese dioxide was used for this purpose.
He discovered that a mixture of salt, manganese dioxide and sulphuric acid could produce chlorine, which Watt believed might be a cheaper method.
It was through his studies of manganese dioxide that Scheele developed his concept of "fire air" (his name for oxygen).
Scheele and other chemists were aware that manganese dioxide contained a new element, but they were not able to isolate it.
Scheele and others were aware that pyrolusite (now known to be manganese dioxide ) contained a new element, but they were unable to isolate it.