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Ferric Chloride Hexahydrate: 1,000 Parts of 10 % Solution Evaporated to 483 (Ph. G. 1882)
Boil a ferric chloride solution of 10 per cent iron down to just under half its weight and it sets on standing to a yellow crystalline mass. 483 parts per 100 parts of iron is the weight of ferric chloride with six molecules of water (our calculation; the pharmacopoeia gives no formula). It draws water from moist air, so keep it closed.
Source: Pharmacopoea Germanica, ed. II (1882), English ed. New York 1884, Ferrum sesquichloratum. Start from the 10 % iron solution of the German Pharmacopoeia blueprint; other solutions are a different strength. Picture: iron(III) chloride hexahydrate (Benjah-bmm27, public domain).
初学者
3 days
说明
1
1
Evaporate 1,000 parts to 483
Evaporate 1,000 parts to 483
Evaporate 1,000 parts of 10 % iron ferric chloride solution on a water bath in a weighed porcelain dish until 483 parts are left. For example, 500 g down to 241.5 g.
此步骤所需材料：
氯化铁溶液500 克所需工具：
瓷器
水浴
电热板
等臂天平2
2
Let it set
Let it set
Cover the dish and set it aside in a cool, dry place until it forms a solid mass: a yellow, dry, crystalline mass that melts at a moderate heat and soon goes wet in moist air.
所需工具：
瓷器3
3
Keep it closed
Keep it closed
Break it up and keep it in a tightly closed jar.
所需工具：
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