sodium peroxide

American  

noun

Chemistry.

1. a yellowish-white, hygroscopic, water-soluble powder, Na 2 O 2 , used chiefly as a bleaching agent and as an oxidizing agent.

---

sodium peroxide British  

noun

1. a yellowish-white odourless soluble powder formed when sodium reacts with an excess of oxygen: used as an oxidizing agent in chemical preparations, a bleaching agent, an antiseptic, and in removing carbon dioxide from air in submarines, etc. Formula: Na 2 O 2

---

Example Sentences

Chlorous acid is not known in the pure condition; but its sodium salt is prepared by the action of sodium peroxide on a solution of chlorine peroxide: 2ClO2 + Na2O2 = 2NaClO2 + O2.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" by Various

On our return down the mountain we visited an electric manufacturing plant, the products being aluminum, magnesium, sodium, peroxide, sodium, oxolyte, calcium, and hydrated calcium.

From A Journey Through France in War Time by Butler, Joseph G. (Joseph Green)

The residue in the filter is ignited and fused with a little sodium carbonate and nitrate, or with sodium peroxide.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 "Arundel, Thomas" to "Athens" by Various

More efficient bleaching agents of recent introduction are hydrogen dioxide in a 25% solution or a saturated solution of sodium peroxide; they are less irritating and much more convenient in application.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 2 "Demijohn" to "Destructor" by Various

When the flame reaches the sodium peroxide mixture combustion of the aluminium begins with almost explosive violence, so that great care must be taken in the experiment.

From An Elementary Study of Chemistry by McPherson, William