Stabilizing Fixing Solution Components: The main component of the fixing solution, sodium thiosulfate, easily decomposes under acidic conditions. Thiourea has a certain alkalinity, which can neutralize some of the acidic substances in the fixing solution, adjusting and stabilizing the pH value of the fixing solution, inhibiting the decomposition of sodium thiosulfate, thereby extending the lifespan of the fixing solution.Complexing
Inhibition of Sodium Thiosulfate Decomposition: Sodium thiosulfate (Hypo) in the fixing solution is unstable under acidic conditions and is prone to decomposition reactions. Thiourea has a certain alkalinity, which can neutralize some of the acidic substances in the fixing solution, keeping the pH value of the fixing solution within a relatively stable range, thereby inhibiting the decomposition of sodium thiosulfate.
Thiourea is a sulfur-containing organic compound with the chemical formula SC(NH₂)₂. Due to its unique chemical properties, it has many important applications in the medical field. The following are the main uses of thiourea in medicine:
1.Gold sulphide ore Flotation stage: Xanthate was mainly used: the dosage of butyl xanthate was 150-250 g/t, and thiourea was used as an auxiliary collector (30-80 g/t) to enhance the stability of hydrophobic membranes. Synergistic mechanism: thiourea forms hydrogen bonds with the dithiocarboxyl group (-OCSS⁻) of xanthate through the thiol group (-SH) to increase the adsorption density. Typical case: A gold sulfide mine uses "xanthate (200 g/t) thiourea (50 g/t)", and the gold recovery rate is increased by 8.2%.
Thiourea, also known as thiocarbamide or sulfourea, CAS number: 62-56-6, is an organic compound containing sulfur atoms, which can be used to prepare fumaric acid.
Thiourea, also known as thiourea (CAS No.: 62-56-6), is generally a colorless orthorhombic crystal. Thiourea gold leaching is an important topic in the study of gold hydrometallurgy. Thiourea is non-toxic, has a high leaching rate, and a fast leaching speed. Therefore, this method is most likely to replace the traditional cyanide gold leaching method. When thiourea is present, the electrode potential of the Au/Au electrode pair drops from 1.68v to 0.38v. Obviously, gold is easily dissolved in the thiourea solution. Its working principle is: during the thiourea leaching process, gold is oxidized,
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