Copper electroplating
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Copper electroplating is the process of electroplating a layer of copper onto the surface of a metal object. Copper is used both as a standalone coating and as an undercoat onto which other metals are
PCBs being fabricated in an industrial copper pattern plating line
Sodium cyanide
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Sodium cyanide is a compound with the formula NaCN and the structure Na+ −C≡N. It is a white, water-soluble solid. Cyanide has a high affinity for metals, which leads to the high toxicity of this salt
Copper electroplating
…is also used to prevent the second material from diffusing into the substrate. Cyanide baths contain cuprous cyanide as the source of copper(I) ions, sodium or potassium cyanide as a source of free cyanide that complexes with cuprous cyanide to render it soluble, and sodium or potassium hydroxide for increased…
Natriumcyanid; Cyannatrium; Na CN