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Barium Peroxide: Barium Oxide Heated in Air
Ondřej Mangl (Wikimedia Commons) · Public domain
Charlie

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Charlie

14. uMfumfu 2026DE
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Barium Peroxide: Barium Oxide Heated in Air

Barium oxide takes oxygen from the air at about 500 °C and becomes barium peroxide; above 820 °C it gives the oxygen back. The Brin process used this to separate oxygen from air, and the peroxide was once the source of hydrogen peroxide. It is an oxidiser and harmful if swallowed. The picture: barium peroxide on a watch glass.
Ophakathi
A day

Imiyalelo

1

Spread it thin

Crush the barium oxide, weigh it, and spread it thin in an open iron crucible so the air can reach it.

Izinto zokwakha zalesi sinyathelo:

I-barium oxideI-barium oxide150 g

Amathuluzi adingekayo:

Isigqulo NomgquloIsigqulo Nomgqulo
Isikali sesilinganisoIsikali sesilinganiso
Ibhodwe lokuncibilikisa lensimbiIbhodwe lokuncibilikisa lensimbi
Imaski YothuliImaski Yothuli
Amagilavu erabhaAmagilavu erabha
2

Heat in air

Hold the open crucible at about 500 °C in the furnace, checked with the pyrometer, stirring now and then with an iron rod. Never let it go above 820 °C, or the oxygen leaves again.

Amathuluzi adingekayo:

Isithando SamalahleIsithando Samalahle
AmalahleAmalahle
I-pyrometerI-pyrometer
Induku yensimbi eyindilingaInduku yensimbi eyindilinga
Udlawu Lwesitsha SokuncibilikisaUdlawu Lwesitsha Sokuncibilikisa
Amagilavu okushiselaAmagilavu okushisela
Izibuko Zokuchitheka KwamakhemikhaliIzibuko Zokuchitheka Kwamakhemikhali
3

Weigh until done

Lift it out each hour, let it cool a little and weigh it. When it stops gaining, it is peroxide (step 4). Keep it in a dry, closed jar away from anything that burns.

Amathuluzi adingekayo:

Isikali sesilinganisoIsikali sesilinganiso
Udlawu Lwesitsha SokuncibilikisaUdlawu Lwesitsha Sokuncibilikisa
Ijeke LengilaziIjeke Lengilazi
Amagilavu okushiselaAmagilavu okushisela
4

Follow the weight

Ilayisha incwadi ye-Jupyter…

Izinto

1

Amathuluzi Adingekayo

13

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I-barium peroxide

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Barium Oxide: Witherite Burned with Charcoal
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Barium Oxide: Witherite Burned with Charcoal

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