Knowra Thiourea Thiourea Thiourea, SC(NH₂)₂, is the sulfur analogue of urea, with a carbon–sulfur double bond. It is used in organic synthesis, metal processing, and analytical chemistry.
Thione–thiol tautomerism : The reversible transfer of a hydrogen atom and shift of a double bond between thione and thiol forms. Thiourea is predominantly a thione, but tautomerism helps explain its sulfur-centered reactions.
Gold leaching : The extraction of gold from ore by dissolving it into a liquid phase. Thiourea can dissolve gold in acidic solutions as a less persistent alternative to cyanide.
Urea : An organic compound, CO(NH₂)₂, formed from a carbonyl group bonded to two amino groups. Replacing urea’s oxygen with sulfur gives thiourea its defining structural relationship.
Thioacetamide : An organosulfur compound, CH₃CSNH₂, used as a source of sulfide in chemical reactions. Like thiourea, it supplies sulfur in synthesis, but its structure and decomposition behavior differ.
Nucleophilic substitution : A reaction in which a nucleophile replaces a leaving group at an electrophilic atom. Thiourea substitutes for halides in routes to thiols and other sulfur compounds.
Electroplating : The deposition of a metal coating on a surface using electric current. Thiourea is used as an additive that modifies metal deposition and coating properties.
Thiocarbonyl group : A carbon–sulfur double-bond functional group found in thiones and related compounds. The thiocarbonyl bond is thiourea’s central structural feature.
Potassium cyanide : An ionic cyanide salt used in chemical synthesis, electroplating, and gold extraction. Cyanide is the established comparator for thiourea-based gold leaching, with distinct hazards and process chemistry.
Thiourea dioxide : A sulfur-containing oxidation product of thiourea used as a reducing agent and in textile processing. Oxidation converts thiourea into a useful reagent with different redox behavior.
Thiol synthesis : The preparation of compounds containing a carbon–sulfur–hydrogen group. Alkyl thiourea intermediates can be hydrolyzed to produce thiols.
Show all 20