Phys. Chem. Chem. Phys., 2015, 17,19948-19956
DOI: 10.1039/C5CP02288F, Paper
DOI: 10.1039/C5CP02288F, Paper
Masashi Hojo, Masahiko Yamamoto, Kei Okamura
Bromide salts are more effective than chloride salts in gaining the ability of dissolving gold in dilute aqueous nitric acid solution. At 60 [degree]C, a piece of gold-wire (ca. 20 mg) is dissolved in 20 mL of as low as 0.10 mol L-1 HNO3 solution containing 1.0-5.0 mol L-1 NaBr and the dissolution rate constant, log(k/s-1), increases linearly with increasing NaBr concentration.
The content of this RSS Feed (c) The Royal Society of Chemistry
Bromide salts are more effective than chloride salts in gaining the ability of dissolving gold in dilute aqueous nitric acid solution. At 60 [degree]C, a piece of gold-wire (ca. 20 mg) is dissolved in 20 mL of as low as 0.10 mol L-1 HNO3 solution containing 1.0-5.0 mol L-1 NaBr and the dissolution rate constant, log(k/s-1), increases linearly with increasing NaBr concentration.
The content of this RSS Feed (c) The Royal Society of Chemistry