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Nickel: Oxide Cubes Reduced with Carbon in a Muffle Furnace
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 a muffle furnace 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 a muffle, about 24 hours
Heat with carbon in a muffle, about 24 hours
Heat the cubes with carbon in a muffle furnace for about 24 hours. Thorpe gives no temperature; it stays below the melting point of nickel.
所需工具：
碳
马弗炉
坩埚钳
耐热手套此蓝图制作
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