Titrimetric determination of vanadium(V) and chromium(VI) alone and in mixtures with hydrazine sulphate in phosphoric acid media

Autor:	G. Gopala Rao, P.V. Krishna Rao
Rok vydání:	1973
Předmět:	Chemistry Inorganic chemistry Potentiometric titration Vanadium chemistry.chemical_element Biochemistry Analytical Chemistry chemistry.chemical_compound Chromium Reagent Environmental Chemistry Phosphoric acid Hydrazine sulphate Spectroscopy Stoichiometry
Zdroj:	Analytica Chimica Acta. 65:347-356
ISSN:	0003-2670
Popis:	Hydrazine sulphate is proposed as a primary standard reagent for the direct titrimetric determination of vanadium(V) and chromium(VI) alone and in mixtures with potentiometric and photometric end-points, in 9–12 M phosphoric acid medium. The methods proposed possess advantages over those currently available. The use of phosphoric acid as a reaction medium not only accelerates the hydrazine-vanadium(V) reaction very much but also makes it follow an accurate stoichiometric path.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5c5a9f1670698178fe08f93e5839a024 https://doi.org/10.1016/s0003-2670(01)82501-0 Zobrazit plný text záznamu