Sodium cyanide
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in Gold mining
CAS: 143-33-9
EC#:205-599-4
HS Code:2837-11-00
Chemical formula: NaCN
UN 1689, 6.1,I
Marine Pollutant: P
Segregation Group: 6 (Cyanides)
Used in: gold mining for extraction of gold from ore, in steel cyanation, in electroplating, hydrometallurgy of precious metals, in floatation processes and for beneficiation of metallic ores.
Form: Solid sodium cyanide is produced to form a white crystalline highly soluble briquettes or ‘cyanoid’.
Packing: Briquettes are packed in steel drums 40-50 kg and FIBC of 400 kg and 1,000 kg each.
| Indication | UNITS | Norm | |
| Top grade | I grade | ||
| 1. Appearance | White briquettes | ||
| 2. Sodium cyanide, min | % | 98 | 90 |
| 3. NaОH, max | % | 0,5 | 0,8 |
| 4. Na2CO3, max | % | 1,0 | 2,0 |
| 5. H2O, max | % | 0,5 | 5,0 |
