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Sal Ammoniac Sublimed from Dung Soot, the Egyptian Way, Ure 1839
Sal ammoniac takes its name from the temple of Ammon in Egypt, where it was made from the soot of burned camel dung. Andrew Ure (1839): pack the soot into loam-coated glass globes over a furnace and heat them to a dull red; the salt rises and sets as a cake inside the top. Keep the necks clear or the globes can burst.
The picture: ammonium chloride crystals.
高级
A week
说明
1
1
Burn dung for soot
Burn dung for soot
Dry the dung by plastering it on a sunny wall. Burn it in the furnace with an iron sheet set as a hood over the smoke (ours), and scrape the soot off the sheet as it builds up.
此步骤所需材料：
畜粪100 公斤所需工具：
砖砌炉
铁板（锻打）
铁锹
防尘口罩
皮革工作手套2
2
Coat and fill the globes
Coat and fill the globes
Coat glass flasks with a thick skin of loam (clay) and let it dry. Ram the soot in firmly, leaving two or three inches empty at the neck.
所需工具：
圆底烧瓶
黏土
木槌
等臂天平防尘口罩3
3
Sublime
Sublime
Set the globes in holes over the furnace flue and fire with dry dung, slowly at first, until they glow a dull red. The salt rises and cakes inside the top. Clear the necks often with an iron rod: a blocked neck can burst the globe.
所需工具：
砖砌炉畜粪
铁棒皮革工作手套
安全眼镜4
4
Knock out the cake
Knock out the cake
When cold, the globes are usually cracked. Break the glass away from the white cake at the top with the back of a hatchet. Bruise the residue at the bottom and add it to the next charge. Store the salt in a jar.
所需工具：
斧头
玻璃罐等臂天平皮革工作手套安全眼镜5
5
Salt from your soot
Salt from your soot
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