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UBUKORIKORI
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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.
Utangiye
1 day
Amabwiriza
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.
Ibikoresho by'iyi ntambwe:
Karubonate y'umuringa1 as requiredIbikoresho bikenewe:
Ikirundo cyo gushongeramo gifite igifuniko (porukorene)
Ifuru ya muffle
Amakoro y'Icyombo Gishongesha
Uturindantoki twihanganira ubushyuhe2
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.
Ibikoresho bikenewe:
Amacupa y'ikirahuri afite ibipfundikizoIbikoresho
1- 1 as requiredUmwanya
Ibikoresho bikenewe
5- Umwanya
Iki gishushanyo gikora
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