如果你打开过收音机、电视机,甚至旧手机等电子设备,那一定见过里面的构造。是否留意到了电路板上那些闪亮的金色零件?那些闪亮的东西其实就是黄金。由于黄金的导电性能良好,长时间放置也不会腐蚀或生锈,因此常用在电路板上。如果你有闲置的电路板,可以试试提炼黄金,给自己找点乐子。
步骤
方法 1 的 2:
用硝酸提炼黄金
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1
戴好护具。一定要戴好面罩、护目镜和工业手套。化学品和酸液对皮肤具有刺激性,严重的甚至会烧穿皮肤。燃烧产生的酸雾也会灼伤眼睛,如果不慎吸入,会引起恶心。
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2
购买浓硝酸。硝酸是一种无色的化学液体,用于各种工业、钢铁和木材加工。你可以在工业品或化学品商店购买硝酸。
- 某些国家可能禁止购买硝酸,或需要满足一定的要求才能购买。购买前,先向有关部门进行咨询。
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3
将电路板放在玻璃容器中。最好是使用康宁的百丽耐热玻璃器皿,或其他可耐高温的玻璃容器。
- 将电路板切割成小块,然后放在玻璃容器中。
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- 不要用塑料容器,否则会被烧穿。
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4
将浓硝酸倒入存放电路板的玻璃容器中。倒入时容器中会产生酸雾,因此一定要戴好护具。
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5
用玻璃棒搅动混合物,直到溶解。硝酸会溶解电路板上的所有塑料和金属部分,但黄金除外,它要用更强的酸才能溶解。
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6
沥掉硝酸。用过滤器将溶液中的固体析出。
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7
取出未融化的零件。这些零件上就含有黄金。黄金上可能还会残留一些塑料,需要另找办法去掉。记得一定要戴工业级别的手套。
方法 2 的 2:
用火提炼黄金
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1
戴好护具。一定要戴好面罩、护目镜和工业手套,以免吸入塑料燃烧产生的烟雾。用钢钳来翻动燃烧的电路板。
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2
找一个金属盒或一块金属板,将电路板放在上面。将电路板切割成小块,这样烧的快一些。
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3
点燃电路板。在小块上浇一点汽油,然后点燃。用钢钳将燃烧的电路板翻过来,直到烧黑为止。
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4
将火熄灭。让电路板冷却一会,冷到不烫手就行,不要冷过头,否则塑料又会变硬。
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5
掰掉含金零件上的塑料部分。电路板经过燃烧后变得很脆,很容易就能掰断。
- 为安全起见,掰塑料时戴好防护手套。
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警告
- 燃烧的塑料会对肺和环境造成严重的损害,因此操作时一定要格外小心,不要影响其他人。
- 使用酸液和化学品时一定要注意安全。千万不能用手去摸,否则会造成严重的化学烧伤。
- 在通风良好的环境下使用酸液和化学品,以免吸入酸雾。
- 妥善处置化学品。将用过的酸液交由回收站处理。
- 将未燃尽的塑料残留物送往当地的回收站,以便得到妥善处理。