Examples from the Web for dioxide
Lead when present is precipitated on the spiral in the form of a dark powder of dioxide (PbO2).A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
It can also be obtained by passing sulphuretted hydrogen through a solution of the dioxide in hydrochloric acid.
In Fremys process for separating osmium from the residues of platinum ore, ruthenium occurs in a dioxide.Cooley's Practical Receipts, Volume II|Arnold Cooley
The dioxide is used in incandescent gas mantles (see Lighting).
It is possible to separate the dioxide from the water by fractional distillation.An Elementary Study of Chemistry|William McPherson