UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA

Ferric Hydroxide: Precipitated from Ferric Chloride with Excess Ammonia
Hydrated ferric oxide, the brown, slimy precipitate Thorpe's Dictionary (1912) says is best made by adding excess ammonia to ferric chloride solution. Freshly precipitated it dissolves readily in acids; it shrinks a great deal as it dries.
The picture: our diagram.
Utangiye
1 day
Amabwiriza
1
1
Precipitate with excess ammonia
Precipitate with excess ammonia
Add excess ammonia to ferric chloride solution: a bulky, brown, slimy precipitate comes down. No amounts are given. Ours: in a beaker, in a fume hood.
Ibikoresho by'iyi ntambwe:
Umuti wa kloride y'icyuma1 as requiredIbikoresho bikenewe:
Umuti wa amoniyake wa 25-28 %
Igikombe cy'Ikirahure
Igikoresho cyo kuvanga
Akabati k'umwotsi (gafite umuyoboro)
Amadarubindi yo Kwirinda Ibinyabutabire
Uturindantoki tw'ikawusu2
2
Filter and wash (ours)
Filter and wash (ours)
Ours: filter off the precipitate and wash it with water. Keep it moist if it is to be dissolved again: it shrinks considerably in drying.
Ibikoresho bikenewe:
Urupapuro rwo Kuyungurura
Akayunguruzo k'Ikirahure Gafite Umugozi
Icupa ryo gukaraba
Amazi YatunganyijweIbikoresho
1- 1 as requiredUmwanya
Ibikoresho bikenewe
10- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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