In addition to its applications in food, soy lecithin is also prevalent in pharmaceuticals and cosmetics. In pharmaceuticals, it serves as an emulsifier for topical creams and ointments, helping to stabilize active ingredients and improve absorption through the skin. In cosmetics, soy lecithin enhances the texture and stability of creams and lotions, providing a smooth application and improved sensory properties.
The cyanidation process begins with the crushing and grinding of gold-bearing ores to a fine powder. Once the ore is sufficiently prepared, it is mixed with a dilute cyanide solution, typically sodium cyanide. The cyanide ions react with the gold present in the ore, forming a soluble gold-cyanide complex. This reaction occurs in a controlled environment — often in large tanks — to enhance the contact between the ore and the solution.