| 翻訳と辞書 |
Digger gold
Digger gold is the common slang term for gold recovered from electronics components such as board fingers, CPUs, and connector pins.
== Methods ==
For the gold fingers on boards or circuits, often a stripping solution is used to remove the gold from the board material, nitric acid also works well in this regard as many gold components are soldered to boards with silver-based solders that are soluble in nitric acid (which gold is not). After dissolving all other metals in solution, the digger gold is recovered by dissolution of the gold in aqua regia and subsequent selective precipitation of the gold using ferrous sulfate or another selective reducing agent such as hydrazine.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Digger gold」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|