UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Sodium Sulfide: Salt Cake Reduced with Carbon
Sodium sulfide is made by heating sodium sulfate with carbon: Na2SO4 + 2 C gives Na2S and carbon dioxide, the same reduction as the first step of the Leblanc black ash, at about 1000 °C. It is the sulfide half of the kraft pulping liquor.
The picture: our diagram of the covered crucible.
Hejuru
Half a day
Amabwiriza
1
1
Mix
Mix
Grind dry salt cake with fine charcoal, about 500 g sulfate to 85 g carbon (see the notebook).
Ibikoresho by'iyi ntambwe:
Sulfate ya sodiyumu itaratunganywa500 g
Amakara - asekuye neza85 gIbikoresho bikenewe:
Iminzani ya Digitale yo mu Gikoni
Isekuru n'Umuhini2
2
Reduce
Reduce
Pack the mix in a covered crucible and fire it in the kiln at about 1000 °C until the reaction is complete.
Ibikoresho bikenewe:
Ikirahure cy'Ibumba Rirwanya Umuriro
Itanura
Amakoro y'Icyombo Gishongesha
Uturindantoki two gukomeza ibyuma
Amadarubindi y'umutekano3
3
Cool and store
Cool and store
Let it cool covered, break up the fused cake and keep it dry in a sealed container.
Ibikoresho bikenewe:
Isekuru n'Umuhini
Ibikoresho byo kubikamo bidafungura umwuka4
4
Carbon for the reduction
Carbon for the reduction
Gupakira ikaye ya Jupyter…
Ibikoresho
2- Umwanya
- Umwanya
Ibikoresho bikenewe
8- Umwanya
- Umwanya
- Umwanya
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