LIMITATIONS IN TITRIMETRIC DETERMINATION OF ACID GROUPS IN GRAPHITE OXIDE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов

N.V. Alemasova¹  A.N. Vdovichenko¹  L.A. Prokofieva¹  M.V. Savoskin¹ 

[1] Public Institution «L.M.Litvinenko Institute of Physical Organic and Coal Chemistry», Donetsk, Ukraine;

关键词: graphite oxide;    acid functional groups;    cyclic acid-base titration;   

DOI  :  10.26456/pcascnn/2019.11.006

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown