Kirchnerova, Jitka published the artcileThe mechanism of the electrochemical oxidation of thiourea, Related Products of ethers-buliding-blocks, the publication is Analytica Chimica Acta (1981), 83-95, database is CAplus.
Cyclic voltammetry and potentiostatic coulometry were used to study the electrochem. oxidation of thiourea [62-56-6] in aqueous solutions of HNO3, HNO3-NH4NO3, and NH4NO3-NH4OH in MeCN. These studies were carried out at glassy C and/or Pt working electrodes. In MeCN, the cyclic voltammograms show 1 oxidation peak at ±0.6 V and a reduction peak at -0.1 V. In aqueous solutions up to about pH 6, there is a 2nd oxidation peak at 1.3 V which is irreversible and its height is sensitive to acidity. These experiments have confirmed that in acidic and neutral solutions, the oxidation of thiourea proceeds via a slow 1-electron transfer reaction producing a (NH2)2CS radical cation [61347-13-5]. Further direct oxidation of this radical takes place only at higher potentials (∼1.2 V) and involves hydration and proton-transfer equilibrium Otherwise, C,C‘-dithiodiformamidinium ion [64035-50-3] is formed by a fast dimerization reaction. Coulometric and chronopotentiometric measurements showed that in strong acid, the 2nd oxidation step involves 1 electron, while at lower acidities the further oxidation involving 3 (and possibly 5 electrons) proceeds in 2 (or 3) steps of very similar potential.
Analytica Chimica Acta published new progress about 14807-75-1. 14807-75-1 belongs to ethers-buliding-blocks, auxiliary class Salt,Thiourea,Amine,Aliphatic hydrocarbon chain, name is Formamidine disulfide dihydrochloride, and the molecular formula is C2H8Cl2N4S2, Related Products of ethers-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem