Solubility of H2S in ionic liquids [hmim][PF6], [hmim][BF4], and [hmim][Tf2N] - Rahmati-Rostami, Mahboubeh; Ghotbi, Cyrus; Hosseini-Jenab, Masih; Ahmadi, Amir Naser; Jalili, Amir Hossein (Journal of Chemical Thermodynamics, 2009)