Open Access proceedings Journal of Physics: …
grade of gold in an ore [4] [6]. Cyanide bottle roll test, on the other hand determines the free gold content in the ore [4]. Sodium cyanide (NaCN) solution was used as the lixiviant in leaching the free gold from the ore into the solution. 24 hour cyanide leaching test was conducted on the sample to determine its free gold content [1] [7]
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