IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Copper Carbonate: Blue Vitriol Precipitated with Washing Soda
Pour washing soda into a solution of copper sulfate and a pale blue sludge falls out; warm it and it turns into a dense green powder. George Fownes (1856) gives this as the way the pigment is made; it is close in make-up to the mineral malachite. Potters and glassmakers use it as a copper colour.
The picture: a heap of basic copper carbonate powder.
Olùbẹ̀rẹ̀
A day with drying
Ìlànà
1
1
Two solutions
Two solutions
Dissolve the copper sulfate in one beaker of warm water and the washing soda in another.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Copper sulfate pentahydrate (CuSO4·5H2O)250 g
Sódà ìfọ̀290 g
Omi2 lítàÀwọn irinṣẹ́ tí a nílò:
Òǹwọ̀n ìdọ́gba
Ago Gílásì
Pátákó Gbígbóná
Gílásì Ààbò Fún Ìfọ́n Kẹ́míkà
Ìbọ̀wọ́ rọ́bà2
2
Pour in the soda
Pour in the soda
Pour the soda slowly into the copper, stirring; it froths as gas comes off. A pale blue sludge falls out. Stop when more soda no longer makes any.
Àwọn irinṣẹ́ tí a nílò:
Ago Gílásì
Ọ̀pá Ìrúwé GílásìGílásì Ààbò Fún Ìfọ́n Kẹ́míkàÌbọ̀wọ́ rọ́bà3
3
Warm it green
Warm it green
Warm the mixture gently and stir. Fownes: the precipitate becomes dense and turns green.
Àwọn irinṣẹ́ tí a nílò:
Ago GílásìPátákó GbígbónáỌ̀pá Ìrúwé Gílásì4
4
Wash and dry
Wash and dry
Filter it, wash it several times with clean water to take out the sodium sulfate, and dry it in a dish at low heat. Store the powder in a closed jar.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi2 lítàÀwọn irinṣẹ́ tí a nílò:
Bébà Ìsẹ́
Kọ́nfù Gílásì Onípọ̀n
Àwo Ìgbẹ
Ìgò GílásìGílásì Ààbò Fún Ìfọ́n Kẹ́míkàÌbọ̀wọ́ rọ́bà5
5
Soda for the copper
Soda for the copper
Ń ṣí ìwé Jupyter…
6
6
Limits
Limits
The precipitation and the change to green are Fownes's; the quantities are ours. Copper salts are harmful if swallowed; do not breathe the dry powder.
Ìtọ́nisọ́nà yìí ń ṣe
Blueprint tó jọra
Àwọn blueprint wọ̀nyí pín ìmọ̀ — ọ̀nà, ohun-èlò tàbí ìlànà
CC0 Àgbègbè Gbogbogbò
Blueprint yìí ti jáde lábẹ́ CC0. O lè ṣe àdàkọ, yí padà, pín, àti lò láìsí ìyọ̀ǹda.
Ṣàtìlẹ́yìn Olùṣẹ́dá nípa rírà àwọn ọjà nipasẹ̀ Blueprint wọn Ẹ̀san Olùṣẹ́dá tí àwọn Olùtajà gbé kalẹ̀, tàbí ṣẹ̀dá àtúnṣe tuntun ti Blueprint yìí kí o sì fi sínú Blueprint rẹ gẹ́gẹ́ bí ìsopọ̀ láti pín owó-wíwọlé.