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ÀWỌN OHUN WÍWỌ̀
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.
Àárín
Two days
Ìlànà
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ferrous sulfate250 g
Omi3 lítàÀwọn irinṣẹ́ tí a nílò:
Sódà ìfọ̀
Òǹwọ̀n ìdọ́gba
Ìgò Gílásì
Bàkẹ́ẹ̀tì
Ìbọ̀wọ́ rọ́bà2
2
Precipitate
Precipitate
Pour the soda solution into the copperas solution slowly, stirring, until no more solid forms. Let the solid settle.
Àwọn irinṣẹ́ tí a nílò:
Bàkẹ́ẹ̀tì
Ọ̀pá ìrú igi gígùnÌbọ̀wọ́ rọ́bà3
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi10 lítàÀwọn irinṣẹ́ tí a nílò:
Bàkẹ́ẹ̀tì
Kọ́nfù Gílásì Onípọ̀n
Bébà Ìsẹ́4
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.
Àwọn irinṣẹ́ tí a nílò:
Àwo Ìgbẹ
Ìwẹ̀ yanrìn5
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi2 lítàÀwọn irinṣẹ́ tí a nílò:
Odó àti Ọmọ OdóÌgò GílásìÀwo ÌgbẹÌwẹ̀ yanrìn6
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀rá Ẹran40 g
Ìdí Oyin20 gÀwọn irinṣẹ́ tí a nílò:
Ìkòkò méjì onímí omi
Àwo irin tí kò jinlẹ̀
Aṣọ irun àgùtàn tí a lẹ̀7
7
How much rouge
How much rouge
Ń ṣí ìwé Jupyter…
Àwọn irinṣẹ́ tó nílò
14- Àyè
- Àyè
- Àyè
- Àyè
- Àyè
- Àyè
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