UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Jewellers' Rouge Precipitated from Copperas, Ure 1839
Rouge is fine red iron oxide, the last polish for metal and lenses. Ure (1839) gives the best polishing powder: add soda solution to copperas solution, wash and dry the precipitate, and heat it gently in shallow vessels until it turns a deep brown red. Grind and wash it fine, and bind some in wax and tallow as a bar.
The picture: iron(III) oxide powder.
Hagati
Two days
Amabwiriza
1
1
Two solutions
Two solutions
Dissolve the copperas in warm water in one jar and the washing soda in water in a bucket. Weigh both.
Ibikoresho by'iyi ntambwe:
Salfate y'icyuma250 g
Amazi3 litiroIbikoresho bikenewe:
Sode yo kumesa
Umunzani w'ibiro
Icupa ry'Ikirahure
Indobo
Uturindantoki tw'ikawusu2
2
Precipitate
Precipitate
Pour the soda solution into the copperas solution slowly, stirring, until no more solid forms. Let the solid settle.
Ibikoresho bikenewe:
Indobo
Ikiyiko kirekire cy'igiti cyo kuvangaUturindantoki tw'ikawusu3
3
Wash
Wash
Pour off the clear liquid, fill with fresh water, stir and let it settle again. Repeat several times, then drain the solid on filter paper.
Ibikoresho by'iyi ntambwe:
Amazi10 litiroIbikoresho bikenewe:
Indobo
Akayunguruzo k'Ikirahure Gafite Umugozi
Urupapuro rwo Kuyungurura4
4
Calcine gently
Calcine gently
Dry the solid in a shallow dish on the sand bath, then keep heating it gently, stirring now and then, until it is all a deep brown red.
Ibikoresho bikenewe:
Isahani yo kumisha
Isahani y'umucanga5
5
Grind and wash fine
Grind and wash fine
Grind it in the mortar, stir it into water, wait a minute and pour the cloudy water off the coarse grains into another jar. Let that settle, pour off the water and dry the fine powder. This is the rouge.
Ibikoresho by'iyi ntambwe:
Amazi2 litiroIbikoresho bikenewe:
Isekuru n'UmuhiniIcupa ry'IkirahureIsahani yo kumishaIsahani y'umucanga6
6
A rouge bar
A rouge bar
Melt tallow and beeswax together, stir in rouge until it is a stiff paste, and pour it into a small pan to set. Rub the bar on a felt or cloth buff to polish.
Ibikoresho by'iyi ntambwe:
Ibinure by'Inyamaswa40 g
Igishashara20 gIbikoresho bikenewe:
Isafuriya ebyiri zo guteka ku mazi
Isahani y'icyuma ngufi
Ubwoya bw'intama bwashongeshejwe7
7
How much rouge
How much rouge
Gupakira ikaye ya Jupyter…
Ibikoresho
4- 250 gUmwanya
- 15 litiroUmwanya
- Umwanya
- 20 gUmwanya
Ibikoresho bikenewe
14- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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