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Nickel Sheet by Electrowinning from Nickel Sulfate
Electrolytic nickel is won from a nickel salt solution: pass a direct current from an inert anode through nickel sulfate solution and the nickel plates out on the cathode. A flat stainless steel plate makes a reusable cathode; when the deposit is thick enough, strip it off as a sheet of nickel.
The picture: our diagram of the cell.
高级
One to several days
说明
1
1
Make the solution
Make the solution
Dissolve nickel sulfate in warm water in the tank, about 250 g per litre.
此步骤所需材料：
六水硫酸镍2.5 公斤
水10 升所需工具：
电解槽
数字厨房秤
耐化学品手套
安全眼镜2
2
Hang the electrodes
Hang the electrodes
Hang a clean flat stainless steel plate as the cathode (−) between inert anodes (+), not touching.
所需工具：
不锈钢板
惰性阳极电解槽3
3
Electrowin
Electrowin
Pass direct current and let the nickel build up on the cathode; see the notebook for how much a given current and time deposit.
所需工具：
直流电源耐化学品手套4
4
Strip the sheet
Strip the sheet
Lift out the cathode, rinse it, and peel the nickel deposit off the stainless plate as a sheet. Clean the plate and use it again.
所需工具：
耐化学品手套安全眼镜5
5
Faraday's law
Faraday's law
正在加载 Jupyter 笔记本…
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