目次
オススメ度:★★★☆☆
希ヨードチンキで金をコロイド化。金が完全にコロイド化したら希ヨードチンキの倍量の水を投入し、アスコルビン酸を加えて金を還元。還元水の水分を飛ばしてからバーナーで溶解します。
こちらは某Youtuberさんの動画を再現してみたくて実験してみたのですが、水分を飛ばす工程で還元水が突沸。ロスが多かったです。500ml用の大き目なビーカーを用いましたが、これでも小さかったのかも?また還元水をそのまま加熱すると炭化した有機物?が発生するので一度に少量しか処理できませんでした。還元した金を洗浄すれば有機物っぽい炭化した何かが発生する事は無かったのかもしれませんが、洗い流した方に金が含まれる可能性を考えて洗浄はしていません。
何かにこびりついた金を収集するには良い方法かもしれませんが、そうでない場合はこの方法ではロスが多いと思います。
| 初期値 | インゴット化 | ロス率 |
| 0.491g | 0.409g | 17.8% |
メリット
・何かにこびりついた金をインゴット化できる
デメリット
・ロスが大きい
・希メードチンキ、アスコルビン酸などのランニングコストとホットプレートの準備などが必要
・チョコ皿がもの凄く汚れる
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