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Nickel: Oxide Cubes Reduced with Carbon in Crucibles
Nickel can be won from its oxide with carbon, as in Thorpe's Dictionary (1912): the oxide is bound with sugar syrup, moulded into cubes, dried and heated with carbon in crucibles for about 24 hours. The heat is not enough to melt the nickel. Nickel made this way is somewhat brittle; a broken piece shows a dull-grey, crystalline face.
The picture: our diagram.
中级
2 days
说明
1
1
Bind the oxide with sugar syrup
Bind the oxide with sugar syrup
Mix nickel oxide with sugar syrup. Thorpe gives no amounts. Ours: syrup from white sugar dissolved in warm water.
此步骤所需材料：
一氧化镍1 as required所需工具：
白砂糖
水
玻璃烧杯
电热板
搅拌器
橡胶手套2
2
Mould into cubes and dry
Mould into cubes and dry
Mould the paste into cubes and dry them. Ours: shaped by hand, dried in a drying oven.
所需工具：
干燥炉橡胶手套3
3
Heat with carbon in crucibles, about 24 hours
Heat with carbon in crucibles, about 24 hours
Pack the cubes with carbon in crucibles and heat for about 24 hours. Thorpe gives no temperature; it stays below the melting point of nickel. Ours: a charcoal furnace.
所需工具：
碳
坩埚
木炭坩埚炉
坩埚钳
耐热手套此蓝图制作
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