Potassium Gold Cyanide

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Potassium Gold Cyanide is a cyanide salt used for gold plating. It contains 68% gold by weight.

Turning PGC salt into gold

All procedures should be done in a fume hood.

  • Least dangerous but with most waste (gallons): zinc cementation
  • More dangerous, but less waste : electrolytic recovery by plating
  • Most dangerous, but virtually no hazardous waste : chemical destruction via wet ashing and combustion of HCN. To vent HCN gas is dangerous and should not be done. HCN is highly toxic.

See also

References

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