Application of 13940-83-5. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Nickel(ii)fluoridetetrahydrate, is researched, Molecular F2H8NiO4, CAS is 13940-83-5, about Mechanism of film formation on nickel anodes in a molten NH4F.2HF. Author is Tasaka, A.; Tsukuda, Y.; Yamada, S.; Matsushita, K.; Kohmura, A.; Muramatsu, N.; Takebayashi, H.; Mimaki, T..
The mechanism of film formation on the Ni anode in a well dehydrated melt of NH4F.2HF was studied at 1000C. The potentiodynamic and potentiostatic polarization behaviors of the Ni anode were studied to elucidate the anodic processes. The oxidized layer was composed of NiF2 with a small amount of nickel oxides such as NiO and Ni2O3 or oxyfluorides having plural oxidation states and a highly oxidized nickel fluoride formed on the Ni anode polarized at potentials >4.5 V vs. H2 and it grew thicker through the repetition of the alternate formation and degradation with the time of electrolysis. The composition and the thickness of the oxidized layer may reflect on the c.d. on the nickel anode under polarization.
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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider