Measurement and Correlation of Water Activities and Refractive Indices for the Systems PPG425 + (NH4)2SO4 + H2O and PPG425 + Na2SO4 + H2O at 298.15 K

Autor: Karamat Nasirzadeh, Alireza Salabat, Hosein Dashti
Rok vydání: 2004
Předmět:
Zdroj: Journal of Chemical & Engineering Data. 49:980-982
ISSN: 1520-5134
0021-9568
DOI: 10.1021/je034291d
Popis: The water activities and refractive indices of the systems polypropylene glycol (PPG425) + (NH4)2SO4 + H2O and PPG425 + Na2SO4 + H2O were measured at 298.15 K. The water activities were obtained using the isopiestic method. The water activities and refractive indices data were correlated with empirical equations. The agreement between the correlation and the experimental data is good.
Databáze: OpenAIRE