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Loss of gold, at the time of parting
Is there any chance for the gold to segregate from the cornet at the time of parting? Using 1.2 & 1.3 HNO[SUB]3[/SUB], Specific gravity (3:2 & 2:3, H[SUB]2[/SUB]O- HNO[SUB]3[/SUB]), and the parting time is fifteen minutes for each acid. Temperature of the hot plate is adjusted to 60[SUP]o[/SUP]C. After the parting, added NaCl to the 1.3 density acid, and the color of the solution got changed to yellow. Is this because of the gold, segregated from the cornet, that react with the halides and forming gold chloride solution. If yes, anybody could suggest a method to minimize the lose of the gold from the cornet, and to extract gold from the gold chloride solution. Should i need to keep, the parting acid, boil for entire 15 minutes or just below boiling.
Is there any chance for the gold to segregate from the cornet at the time of parting? Using 1.2 & 1.3 HNO[SUB]3[/SUB], Specific gravity (3:2 & 2:3, H[SUB]2[/SUB]O- HNO[SUB]3[/SUB]), and the parting time is fifteen minutes for each acid. Temperature of the hot plate is adjusted to 60[SUP]o[/SUP]C. After the parting, added NaCl to the 1.3 density acid, and the color of the solution got changed to yellow. Is this because of the gold, segregated from the cornet, that react with the halides and forming gold chloride solution. If yes, anybody could suggest a method to minimize the lose of the gold from the cornet, and to extract gold from the gold chloride solution. Should i need to keep, the parting acid, boil for entire 15 minutes or just below boiling.
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