Oxylith
The oxylith is patented chemicals consisting basically of Péroxyde of sodium, of rough Formule NaO, developped at the point at the beginning of the XXe century by the chemist Georges-François Jaubert to produce oxygen. It is a friable solid compound chemical of color bluish, which dissolves in contact with water while releasing from oxygen. The reaction, very violent, is strongly Exothermique. Because of this reactivity, oxylith must be absolutely preserved safe from moisture. Stored without precautions particular, it ends up disaggregating in contact with the steam present in the ambient air. This product should not enter either in contact with the skin (in particular, one should handle it only with one grip), because its dessicant effects cause serious burns.
Oxylith was used in the first gas masks, which equipped the coal mines then later the French infantry during the First World War. It was still used in the courses of chemistry of secondary education in the years 1970.
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