TY - JOUR
T1 - The odd-even behaviour of dicarboxylic acids solubility in the atmospheric aerosols
AU - Rozaini, Mohd Zul Helmi
AU - Brimblecombe, Peter
PY - 2009
Y1 - 2009
N2 - The solubility and the enthalpy of dicarboxylic acids have been determined in water at intervals between 278.5 and 543.5 K. At 298.15 K, the values derived were: ?sol H m (m?=?1.33 mol kg-1)?=?29.80 kJ mol-1for oxalic acid; ?sol H m (m?=?16.03 mol kg-1)?=?12.82 kJ mol-1 for malonic acid; ?sol H m (m?=?0.75 mol kg-1)?=?28.20 kJ mol-1 for succinic acid; ?sol H m (m?=?8.77 mol kg-1)?=?48.01 kJ mol-1 and ?sol H m (m?=?0.17 mol kg-1)?=?40.30 kJ mol-1 for glutaric and adipic acid respectively. The solubility value exhibits a prominent odd–even effect with respect to terms with even number of carbon atoms with the odd carbon numbers showing much higher solubility. Observations made in the atmospheres suggest that this odd–even effect may have implications for the relative abundance of these acids in aerosols.
AB - The solubility and the enthalpy of dicarboxylic acids have been determined in water at intervals between 278.5 and 543.5 K. At 298.15 K, the values derived were: ?sol H m (m?=?1.33 mol kg-1)?=?29.80 kJ mol-1for oxalic acid; ?sol H m (m?=?16.03 mol kg-1)?=?12.82 kJ mol-1 for malonic acid; ?sol H m (m?=?0.75 mol kg-1)?=?28.20 kJ mol-1 for succinic acid; ?sol H m (m?=?8.77 mol kg-1)?=?48.01 kJ mol-1 and ?sol H m (m?=?0.17 mol kg-1)?=?40.30 kJ mol-1 for glutaric and adipic acid respectively. The solubility value exhibits a prominent odd–even effect with respect to terms with even number of carbon atoms with the odd carbon numbers showing much higher solubility. Observations made in the atmospheres suggest that this odd–even effect may have implications for the relative abundance of these acids in aerosols.
U2 - 10.1007/s11270-008-9826-5
DO - 10.1007/s11270-008-9826-5
M3 - Article
VL - 198
SP - 65
EP - 75
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
SN - 0049-6979
IS - 1-4
ER -