Infrared study of water benzene mixtures at high temperatures and pressures

Autor:	Shun-ichi Ikawa, Seiya Furutaka
Rok vydání:	2002
Předmět:	Molar concentration Chemistry Infrared Analytical chemistry Mixing (process engineering) Infrared spectroscopy Condensed Matter Physics chemistry.chemical_compound Phase (matter) General Materials Science Physics::Chemical Physics Absorption (chemistry) Benzene Bar (unit)
Zdroj:	Journal of Physics: Condensed Matter. 14:11467-11475
ISSN:	0953-8984
DOI:	10.1088/0953-8984/14/44/501
Popis:	Infrared spectra of water–benzene mixtures have been measured at temperatures and pressures in the 473–648 K and 100–350 bar ranges, which extend over the two- and one-phase regions of the mixtures. Molar concentrations of water and benzene in the benzene-rich phase were estimated from absorption intensities of the OH stretching band of HDO and combination bands of benzene, respectively. Using these results, densities of the benzene-rich phase were estimated and compared with the average densities before mixing which were calculated from literature densities of the neat liquids at the same temperature and pressure. An anomalously large volume change for mixing has been found in the vicinity of the critical region of the mixture.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::864bfd69c7a024faff1f74d6b7aac3ee https://doi.org/10.1088/0953-8984/14/44/501 Zobrazit plný text záznamu