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Title: The Henry's law coefficient of 2-nitrophenol over the temperature range 278–303 K
Authors: Heal, Mathew R
Issue Date: 2001
Citation: Müller, B. and Heal, M. R. (2001) The Henry's law coefficient for 2-nitrophenol in the temperature range 278-303 K, Chemosphere 45, 309-314
Publisher: Elsevier
Abstract: Although 2-nitrophenol has been identified as an important environmental chemical there is scarcity in the literature regarding the temperature dependence of its Henry's law coefficient, H. Here a bubble purge method was used to measure H for 2- nitrophenol over the temperature range 278–303 K. A novel approach in the data treatment allowed correction of the data for non-equilibrium partitioning in the apparatus to obtain the true equilibrium H value. The experimentally derived temperature-dependent expression for H of 2-nitrophenol is lnH (M atm−1)=(6290/T (K))−16.6. The standard enthalpy and entropy of gas-to-liquid transfer for 2- nitrophenol in aqueous solution are −52.3±8.1 kJmol−1 and −138±28 Jmol−1 K−1, respectively. (Errors are 95% confidence intervals.)
Keywords: 2-Nitrophenol
Gas-to-liquid partitioning
Bubble column
URI: DOI: 10.1016/S0045-6535(00)00592-0
Appears in Collections:Chemistry publications

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