Showing papers by "Ch. Comninellis published in 1979"
TL;DR: In this article, the influence of acid concn. oxidn. of o-nitrotoluene and presence of a catalyst is discussed and found to be compatible with a mechanism proposed by C. E. Bawn (1951).
Abstract: Indirect electrochem. oxidn. of o-nitrotoluene to o-nitrobenzaldehyde by Co(III) was studied. The highest aldehyde yield (.apprx.80%) is obtained in dispersing a 70-fold excess of o-nitrotoluene in a soln. of Co2(SO4)3 in 60% H2SO4 at 12 Deg. The influence of acid concn. excess of nitrotoluene and presence of a catalyst are discussed and found to be compatible with a mechanism proposed by C. E. Bawn (1951). [on SciFinder (R)]
16 citations
TL;DR: In this paper, the electrochemical preparation of cobaltic sulphate has been studied and it was found that the reaction is best effected in 40 wt% H2SO4 in the presence of silver ions as the catalyst, using PbO2 as the anode, with a low current density and a low conversion.
Abstract: The electrochemical preparation of cobaltic sulphate has been studied and we have found that the reaction is best effected in 40 wt% H2SO4 in the presence of silver ions as the catalyst, using PbO2 as the anode, with a low current density and a low conversion.
15 citations
TL;DR: High purity 1-nitroanthraquinone was prepd. in aq. HF, taking advantage of the high soly as discussed by the authors, with the main impurity 2-nitrogenquinone in the medium.
Abstract: High purity 1-nitroanthraquinone was prepd. in aq. HF, taking advantage of the high soly. of its main impurity, 2-nitroanthraquinone, in the medium. [on SciFinder (R)]
3 citations
TL;DR: In this paper, the anodic behavior of Ni in HF-HCl aq. solns was examd. from the wt. loss of Ni polarized anodically, assuming that Ni dissolves as Ni2+.
3 citations
TL;DR: High purity 1-nitroanthraquinone was prepd. in aq. HF, taking advantage of the high soly as mentioned in this paper, with the main impurity 2-nitrogenquinone in the medium.
Abstract: High purity 1-nitroanthraquinone was prepd. in aq. HF, taking advantage of the high soly. of its main impurity, 2-nitroanthraquinone, in the medium. [on SciFinder (R)]