Number | Date | Country | Kind |
---|---|---|---|
3347165 | Dec 1983 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3473921 | Schmuckler | Nov 1969 | |
4021264 | Knorre et al. | May 1977 |
Number | Date | Country |
---|---|---|
1336241 | Nov 1973 | GBX |
Entry |
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Groenewald, T., "The Dissolution of Gold in Acidic Solutions of Thiourea", Hydrometallurgy 1, (1976), pp. 277-290. |
Hiskey, J. Brent, "Thiourea as a Lifivant for Gold and Silver", Proceedings from the 110th Al Me Meeting, Chicago, Ill., (1981), p. 83. |