Limitations in titrimetric determination of acid groups in graphite oxide
N.V. Alemasova, M.V. Savoskin, A.N. Vdovichenko, L.A. Prokofieva
Public Institution «L.M.Litvinenko Institute of Physical Organic and Coal Chemistry», Donetsk, Ukraine
Abstract: Тhe Boehm titrimetric method gives distorted results when determining total quantity of acid groups total quantity in Hammers’ graphite oxide. It was established that the additional acidity of the aqueous phase of the Hammers graphite oxide suspension is due to intercalated sulfuric acid. The adding alkali during the acid-base titration is accompanied by the reaction of Hammers’ graphite oxide decarboxylation. Such an effect was not observed for an aqueous suspension of Brodie’s graphite oxide.
Keywords: graphite oxide, acid functional groups, cyclic acid-base titration.
Alemasova, N.V. Limitations in titrimetric determination of acid groups in graphite oxide / N.V. Alemasova, M.V. Savoskin, A.N. Vdovichenko et al. // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials: Interuniversity collection of proceedings / Ed. by V.M. Samsonov, N.Yu. Sdobnyakov. – Tver: TSU, 2019. – I. 11. – P. 6-15.
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