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Copper Oxide: Copper Carbonate Heated to Dull Redness
Black copper oxide, CuO, from the carbonate, as Thorpe's Dictionary (1912) gives it: heat copper carbonate to dull redness. Black copper oxide remains, a powder that takes up a little moisture.
The picture: our diagram.
Oqalayo
1 day
Imiyalelo
1
1
Heat to dull redness
Heat to dull redness
Heat copper carbonate to dull redness until it has turned to black copper oxide. No time is given. Ours: a crucible in a muffle furnace.
Izinto zokwakha zalesi sinyathelo:
I-copper carbonate1 as requiredAmathuluzi adingekayo:
I-crucible enesivalo (i-porcelain)
Isithando se-muffle
Udlawu Lwesitsha Sokuncibilikisa
Amagilavu Amelana Nokushisa2
2
Cool and keep closed
Cool and keep closed
Copper oxide is a black powder and slightly hygroscopic. Ours: let it cool and keep it in a stoppered bottle.
Amathuluzi adingekayo:
Amabhodlela engilazi anezivimboIzinto
1- 1 as requiredIsibambeli
Amathuluzi Adingekayo
5- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
- Isibambeli
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