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
Liquid Castile Soap: Olive Oil Boiled with Caustic Potash
Potash makes a soft soap where soda makes a hard one, and soft soap dissolves easily, so an olive-oil potash soap thinned with water is liquid castile soap. The boiling follows the soft-soap practice Andrew Ure described in 1839: oil and caustic potash lye added by turns and boiled gently until the paste turns clear.
The picture: Norwegian green soap (grønnsåpe), another soft soap of fat and potash lye.
Àárín
Half a day
Ìlànà
1
1
Make two lyes
Make two lyes
Dissolve caustic potash in water to make a weak lye (hydrometer 1.05) and a strong one (1.20). Add the potash to the water, not the water to the potash.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Hidiroksidi potasiomu190 g
Omi1 lítàÀwọn irinṣẹ́ tí a nílò:
Òǹwọ̀n ìdọ́gba
Òǹwọ̀n ìwúwo omi
Ago Gílásì
Gílásì Ààbò Fún Ìfọ́n Kẹ́míkà
Ìbọ̀wọ́ rọ́bà2
2
Oil and weak lye
Oil and weak lye
Heat part of the olive oil to nearly 100 °C, stir in some weak lye and bring it to the boil. Add more oil and weak lye by turns until all the oil is in.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Òróró òlífì1 kgÀwọn irinṣẹ́ tí a nílò:
Kẹ́tù Irin
Pátákó Gbígbóná
Ṣíbí IgiGílásì Ààbò Fún Ìfọ́n Kẹ́míkàÌbọ̀wọ́ rọ́bà3
3
Boil gently with strong lye
Boil gently with strong lye
Keep it at the gentlest boil, adding a little strong lye now and then. The froth settles, the paste turns clear and thickens.
Àwọn irinṣẹ́ tí a nílò:
Kẹ́tù IrinPátákó GbígbónáṢíbí IgiGílásì Ààbò Fún Ìfọ́n Kẹ́míkàÌbọ̀wọ́ rọ́bà4
4
Test on a glass plate
Test on a glass plate
Cool a dab on a sheet of glass. It is done when it is clear, not milky, and a thin opaque ring forms round its edge (Ure: the soap has its "strength"). Then take it off the heat.
Àwọn irinṣẹ́ tí a nílò:
Àwo dígíṢíbí Igi5
5
Thin it with water
Thin it with water
Dissolve the soft soap paste in hot water, about three parts water to one of paste (our choice; add less for a thicker soap), and bottle it.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Omi3 lítàÀwọn irinṣẹ́ tí a nílò:
Kẹ́tù IrinPátákó Gbígbóná
Ìgò oní-pọ́ǹpù (PET)6
6
Potash for the oil
Potash for the oil
Ń ṣí ìwé Jupyter…
7
7
Limits
Limits
The boiling and the glass-plate test are Ure's; the quantities, the hot plate and the dilution are ours. Caustic potash lye burns skin and eyes.
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.