另一个人的法：

YOU CAN STRIP THE GOLD BY REVERSE PLATING i.e., MAKING THE JOB AS ANODE IN AN ELECTROLYTIC SOLUTION OF 90%NaCN , 15%NaOH AND 15% SODIUM META NITRO BENZENE SULPHONATE, AND STAINLESS STEEL AS CATHODE. GOLD WILL DEPOSIT ON CATHODE. JUST PEEL OF THE GOLD AND REFINE IN ACID MIXTURE OF NITRIC OR SULPHURIC ACIDS, OR DISSOLVE IT AQUA REGIA, DILUTE THEN ADD SODIUM META BISULPHITE, PURE GOLD WILL PRECIPITATE AT THE BOTTOM.

Panjala Mukesh - Hyderabad, Andhrapradesh, India

另一个人的法：

YOU CAN STRIP THE GOLD BY REVERSE PLATING i.e., MAKING THE JOB AS ANODE IN AN ELECTROLYTIC SOLUTION OF 90%NaCN , 15%NaOH AND 15% SODIUM META NITRO BENZENE SULPHONATE, AND STAINLESS STEEL AS CATHODE. GOLD WILL DEPOSIT ON CATHODE. JUST PEEL OF THE GOLD AND REFINE IN ACID MIXTURE OF NITRIC OR SULPHURIC ACIDS, OR DISSOLVE IT AQUA REGIA, DILUTE THEN ADD SODIUM META BISULPHITE, PURE GOLD WILL PRECIPITATE AT THE BOTTOM.

Panjala Mukesh - Hyderabad, Andhrapradesh, India