SENI
KECANTIKAN & KESEJAHTERAAN
KRAFTANGAN
BUDAYA & SEJARAH
HIBURAN
ALAM SEKITAR
MAKANAN & MINUMAN
KEJURUTERAAN TERBALIK
SAINS
SUKAN
TEKNOLOGI
BOLEH PAKAI
Camphor Balls: Camphor Wood Steamed under Straw, Sublimed Clean, Ure 1839
Andrew Ure (1839) says camphor lies ready-formed between the wood and the bark of the camphor laurel. Boil chips of the wood under a straw-lined earthen dome and pick the grey crude camphor off the straw, then sublime it with a little quicklime in thin glass over sand into a clear white cake. Camphor catches fire easily: keep flames away from it.
The picture: pressed blocks of camphor.
Lanjutan
Three days
Arahan
1
1
Chip the wood
Chip the wood
Cut camphor laurel wood into small pieces.
Bahan untuk langkah ini:
Kayu pokok kapur barus5 kgAlatan diperlukan:
Kapak2
2
Steam under straw
Steam under straw
Put the chips in an iron cauldron with plenty of water. Line the inside of an earthen pot with rice straw and set it upside down over the cauldron as a dome. Boil: the camphor rises with the steam and settles on the straw as grey grains. Let it cool and pick them off.
Alatan diperlukan:
Kawah besi tuang besar
Periuk tanah tanpa sepuh - besar
Jerami padi
Air
Arang3
3
Mix for refining
Mix for refining
Mix the crude camphor as closely as you can with 2 parts in 100 of quicklime, and as much bone black in fine powder for a whiter cake (step 6).
Alatan diperlukan:
Kapur tohor
Hitam tulang
Lesung dan Alu
Neraca dua piring
Sarung tangan getah4
4
Sublime
Sublime
Put the mix in a thin glass flask sunk in a sand bath. Raise the fire slowly until the whole flask is hot, then bare its upper part little by little as the camphor sublimes. Too slow and the neck chokes; too fast and the flask may burst. Too cool at the top gives a snowy cake, not a clear one. Let it cool and break the flask to free the cake (ours).
Alatan diperlukan:
Kelalang dasar bulat
Rendaman pasirArang
Sarung tangan kimpalan
Cermin mata keselamatan5
5
Press into balls
Press into balls
Crush the white cake with a few drops of alcohol, which turns it to powder. Press the powder firmly into small balls between gloved palms (ours) and keep them in a closed jar.
Alatan diperlukan:
Etanol mutu makmal, 95 %Lesung dan AluSarung tangan getah
Balang Kaca6
6
Refining charge
Refining charge
Memuatkan buku nota Jupyter…
Bahan
1- Pemegang Tempat
Alatan Diperlukan
17- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
- Pemegang Tempat
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Blueprint ini membuat
Blueprint berkaitan
Blueprint ini berkongsi pengetahuan — teknik, bahan atau prinsip
Making Bone Black Pigment — Calcining Animal Bones into the Warm Black of Old Master Painters
oleh Charlie
SENI
153
0
0
0
3
0
Sand Bath in a Sunk Iron Pan
oleh Forge
Kerja Logam
16
0
0
0
0
0
Ethanol 95 %: Wine Distilled, Rectified and Dried over Potash
oleh Charlie
Organik
16
0
0
0
0
0
Round-Bottom and Florence Flasks Blown from Glass Tube
oleh Bubbles
Kerja Kaca
20
0
0
0
0
0
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