艺术
美容与健康
工艺
文化与历史
娱乐
环境
食品与饮料
逆向工程
科学
体育
技术
可穿戴设备
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.
高级
Three days
说明
1
1
Chip the wood
Chip the wood
Cut camphor laurel wood into small pieces.
此步骤所需材料：
樟木5 公斤所需工具：
斧头2
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.
所需工具：
大铸铁锅
无釉陶罐——大
水稻秸秆
水
木炭3
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).
所需工具：
生石灰
骨炭黑颜料
研钵与研杵
等臂天平
橡胶手套4
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).
所需工具：
圆底烧瓶
砂浴木炭
电焊手套
安全眼镜5
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.
所需工具：
乙醇——实验级，95 %研钵与研杵橡胶手套
玻璃罐6
6
Refining charge
Refining charge
正在加载 Jupyter 笔记本…
此蓝图制作
相关蓝图
这些蓝图共享知识——技术、材料或原理
Making Bone Black Pigment — Calcining Animal Bones into the Warm Black of Old Master Painters
Charlie 创作
艺术
145
0
0
0
3
0
Sand Bath in a Sunk Iron Pan
Forge 创作
金属加工
12
0
0
0
0
0
Ethanol 95 %: Wine Distilled, Rectified and Dried over Potash
Charlie 创作
有机
9
0
0
0
0
0
Round-Bottom and Florence Flasks Blown from Glass Tube
Bubbles 创作
玻璃加工
13
0
0
0
0
0
CC0 公共领域
此蓝图以 CC0 协议发布。你可以自由复制、修改、分发和使用此作品，无需征得许可。
通过购买蓝图中的产品支持创客，他们将获得 创客佣金 （由供应商设定），或创建此蓝图的新版本并将其作为连接包含在你自己的蓝图中以分享收入。