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What Chemical Is Used To Extract Gold?



Gold is a precious metal that has been used for many centuries for its beauty and value. It is found in various forms such as flakes, nuggets, and dust. However, extracting gold from its ores is not an easy process. It requires a series of complex chemical reactions that involve several different chemicals.

The Chemical Used to Extract Gold

The chemical used to extract gold from its ores is called cyanide. Cyanide is a highly toxic chemical that can be deadly if it is not used properly. It is a powerful oxidizing agent that reacts with gold to form a soluble complex.

The Process of Gold Extraction

The process of extracting gold from its ores involves several steps. First, the ore is crushed into small pieces and then ground into a fine powder. The powder is then mixed with water and a weak solution of cyanide. The mixture is then agitated in tanks to allow the cyanide to dissolve the gold. The gold is then separated from the solution using activated carbon, which absorbs the gold and forms a solid mass.

The Risks of Using Cyanide

While cyanide is an effective chemical for extracting gold, it is also highly toxic. Accidents involving cyanide can be very dangerous and can result in serious injury or death. In addition, cyanide can cause environmental damage if it is not properly handled and disposed of.

Alternatives to Cyanide

Due to the risks associated with using cyanide, there has been a growing interest in finding alternative chemicals for gold extraction. Some of the alternatives that have been proposed include thiosulfate, bromide, and thiol-based compounds.


In conclusion, cyanide is the most commonly used chemical for extracting gold from its ores. While it is highly effective, it is also highly toxic and can be dangerous if not handled properly. It is important for mining companies to take all necessary precautions to ensure the safe handling and disposal of cyanide. Furthermore, the development of alternative chemicals for gold extraction is essential for reducing the risks associated with this process.