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Soda Ash from Barilla: Saltwort Burned, Washed and Boiled Dry
Before soda was made from salt, it came from barilla, the ash of the seashore plant Salsola soda, which gave soda ash its name. Andrew Ure (1839): cut the ripe plants, dry them and burn them just hot enough for the ash to half melt into hard lumps. Wash the soda out of the lumps with water and boil it dry. The lye is caustic: wear gloves and glasses.
The picture: Salsola soda growing by the sea.
中级
A week
说明
1
1
Cut and dry
Cut and dry
Cut the saltwort when ripe and dry it in the sun. Rub out the seeds and keep them for sowing.
此步骤所需材料：
猪毛菜（Salsola soda）60 公斤所需工具：
镰刀
防水篷布2
2
Burn to barilla
Burn to barilla
Light a little firewood in the furnace and feed in the dry plants. Keep the fire just hot enough for the ash to half melt, raking it now and then, so it sets on cooling into hard, cellular lumps: barilla.
所需工具：
砖砌炉
薪柴
铁耙
电焊手套
安全眼镜3
3
Wash out the soda
Wash out the soda
Break the barilla small and soak it in water in a pot, stirring. Let it settle and strain the clear lye through cloth. Wash the residue again and add the washings.
所需工具：
大锤
大汤锅
水
布（过滤用）
橡胶手套安全眼镜4
4
Boil dry
Boil dry
Boil the lye down in an open pan until only a dry white crust is left. Scrape it out, weigh it and keep it in a closed jar.
所需工具：
煮糖锅薪柴
等臂天平
玻璃罐橡胶手套安全眼镜5
5
Soda in barilla
Soda in barilla
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材料
1- 60 公斤占位符
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