A Review and Sustainable Alternative to Sodium-Based and Cyanide-Containing Gold Leaching Agents -Glycine-Thiosulfate Hybrid System Preprint

This study reviews the use of sodium-based compounds such as urea, sodium sulfate, sodium chloride, sodium carbonate, and thiosulfate-often formulated with sodium cyanide-as gold leaching agents by artisanal miners, and proposes a greener, more sustainable alternative.