塩酸(HCL)の簡単な方法を使用して金堆積物を精製します。
Purify Gold Sediment Using Hydrochloric Acid
Gold Recovery Made Easy: No Nitric Acid Required!
Dissolving gold with hydrogen peroxide.
Nitric acid & salt = Gold
純金の延べ棒を酸に溶かす
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。
金回収のための硝酸の製造
Refine Gold Sediment Using Bleach | Gold Powder Refining Using Bleach And HCL
塩酸と過酸化水素に金を溶解する
酸で岩石を溶かして結晶を露出 |ムリア酸 |ヒントとコツ ロックハウンド
Dissolving gold with H202! (gold recovery)
アラスカ産砂金を漂白剤と塩酸で精製する方法 パート 1of2
Gold Recovery Without Nitric Acid Used | How To Recover Gold Without Nitric Acid?
What is inside? Dissolving rocks in ACID!
Purification of 18k Gold
Desoldering PCBs with Hydrochloric Acid for Gold Recovery
How To Remove Metastannic Acid From Gold Sediment | Gold Recovery Bad Crystals Problem Solving
NO NITRIC ACID GOLD RECOVERY | AP GOLD RECOVERY | ACID PEROXIDE GOLD RECOVERY
Gold recovery from Aqua regia acid Use zinc powder.