The Action of Sulphide Ion and of Metal Salts on the Dissolution of Gold in Cyanide Solutions
- Organization:
- The American Institute of Mining, Metallurgical, and Petroleum Engineers
- Pages:
- 4
- File Size:
- 342 KB
- Publication Date:
- Jan 9, 1950
Abstract
The dissolution of gold by cyanide solutions was studied by determining the time required for the solvents to dissolve gold leaf. Minute traces, even 0.5 ppm, of sulphide ion retard the dissolution of gold, and this behavior cannot be accounted for by the presently accepted hypotheses involving oxygen-depletion or thiocyanate formation. On the other hand, traces of the salts of lead, bismuth, mercury, and thallium considerably accelerate the dissolution. The beneficial effect of lead is dependent upon the pH and cyanide ion concentration of the solution.
Citation
APA: (1950) The Action of Sulphide Ion and of Metal Salts on the Dissolution of Gold in Cyanide Solutions
MLA: The Action of Sulphide Ion and of Metal Salts on the Dissolution of Gold in Cyanide Solutions. The American Institute of Mining, Metallurgical, and Petroleum Engineers, 1950.