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Antimony Trioxide: Roasted Antimony Fused with More Metal (Thorpe 1912)
Antimony trioxide is a white, fusible powder that turns to vapour at red heat. Powdered antimony heated in a shallow dish becomes antimony tetroxide. Fused with more metal, the tetroxide gives the trioxide, and the spare metal sinks.
Source: Thorpe, Dictionary of Applied Chemistry vol. 1 (1912), Antimony. Not given: amounts, heats or times. The furnace and crucible are ours. Work under a hood with a respirator, because the oxide fumes at red heat. Picture drawn by Youblob.
Àárín
1 day
Ìlànà
1
1
Powder the antimony and roast it
Powder the antimony and roast it
Powder antimony and heat it in a shallow dish until it has turned into antimony tetroxide. Keep back some unroasted metal. Not given: heat and time. Work under a hood.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Antimoni1 as requiredÀwọn irinṣẹ́ tí a nílò:
Odó àti Ọmọ Odó
Àwo tí kò jìn
Ààrò muffle
Àpótí eérú (tí ó ní ọ̀pá ìjáde)
Ẹ̀rọ Ìmí P100
Ìbọ̀wọ́ Tí Ń Fara Da Ooru2
2
Fuse with unchanged metal
Fuse with unchanged metal
Fuse the tetroxide with unchanged antimony in a crucible. They react to antimony trioxide, and the spare metal sinks to the bottom. Ours: a lidded crucible, kept below red heat as far as you can, since the trioxide is volatile at red heat. Heated longer in air it goes back to the tetroxide.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Antimoni1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ìkòkò Amọ̀ Tí Ń Kojú InáÀàrò muffle
Ẹmú Ìkòkò Ìyọ́Àpótí eérú (tí ó ní ọ̀pá ìjáde)Ẹ̀rọ Ìmí P100Ìbọ̀wọ́ Tí Ń Fara Da Ooru3
3
Break out and store the oxide
Break out and store the oxide
Ours: let it cool, break the white oxide away from the metal button, powder it and keep it in a closed, labelled jar.
Àwọn irinṣẹ́ tí a nílò:
Odó àti Ọmọ OdóẸ̀rọ Ìmí P100
Ìgò Gíláàsì Dúdú Onídìí Tí Kò Jẹ́ Afẹ́fẹ́ KọjáÌtọ́nisọ́nà yìí ń ṣe
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