Issue 7, 1989
From the journal:

Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics

Characterization of the ionization of phosphoric acid using Raman spectroscopy

Antoine Zwick,   Faouzi Lakhdar-Ghazal  and  Jean-François Tocanne  

Abstract

Ionization of sodium dihydrogen phosphate in aqueous solutions of hydrochloric acid of various concentrations has been studied using Raman spectroscopy. The known acidities of phosphoric acid were found to lie at pH 12, 6.5 and 2.1. When the concentration of hydrochloric acid is increased up to 12 mol dm–3, the Raman band at 1176 cm–1(P[double bond, length as m-dash]O like) disappeared and the band at 993 cm–1[P(OH) like] shifted. This can be attributed to the new molecular species P(OH)+4: the perprotonated form of phosphoric acid.

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Article information

DOI
https://doi.org/10.1039/F29898500783
Article type
Paper

J. Chem. Soc., Faraday Trans. 2, 1989,85, 783-788

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Characterization of the ionization of phosphoric acid using Raman spectroscopy

A. Zwick, F. Lakhdar-Ghazal and J. Tocanne, J. Chem. Soc., Faraday Trans. 2, 1989, 85, 783 DOI: 10.1039/F29898500783

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