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Camphor Balls: Camphor Wood Steamed under Straw, Sublimed Clean, Ure 1839
Charlie

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Charlie

14. Oktoba 2026DE
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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.
Juu
Three days

Maagizo

1

Chip the wood

Cut camphor laurel wood into small pieces.

Vifaa kwa hatua hii:

Mbao ya mkafuriMbao ya mkafuri5 kg

Zana zinazohitajika:

ShokaShoka
2

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.

Zana zinazohitajika:

Sufuria KubwaSufuria Kubwa
Chungu cha udongo kisicho na rangi ya kioo - kikubwaChungu cha udongo kisicho na rangi ya kioo - kikubwa
Majani makavu ya mpungaMajani makavu ya mpunga
MajiMaji
MkaaMkaa
3

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).

Zana zinazohitajika:

Chokaa haiChokaa hai
Weusi wa mifupaWeusi wa mifupa
Kinu na mchiKinu na mchi
Mizani ya mizani-mbiliMizani ya mizani-mbili
Glavu za mpiraGlavu za mpira
4

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).

Zana zinazohitajika:

Chupa yenye chini cha mviringoChupa yenye chini cha mviringo
Bafu la mchangaBafu la mchanga
MkaaMkaa
Glavu za kulehemuGlavu za kulehemu
Miwani ya usalamaMiwani ya usalama
5

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.

Zana zinazohitajika:

Etanoli ya maabara, 95 %Etanoli ya maabara, 95 %
Kinu na mchiKinu na mchi
Glavu za mpiraGlavu za mpira
Chupa ya KiooChupa ya Kioo
6

Refining charge

Inapakia daftari la Jupyter…

Vifaa

1

Zana Zinazohitajika

17

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