金の採掘: 過酸化水素と塩酸を使用して金石を抽出します。
Dissolving Gold in Hydrochloric Acid and Hydrogen Peroxide
Dissolving gold with hydrogen peroxide.
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Gold recovery from mixed pins vith Acid-Peroxide metod part 1
塩酸(HCL)の簡単な方法を使用して金堆積物を精製します。
Making Nitric Acid For Gold Recovery