“…Oil-A is a mixture of saturates, aromatics, resin, and asphaltene based on previous reports (it is a mixture of 10 types of hydrocarbons: hexane, heptane, octane, nonane, cyclohexane, cycloheptane, toluene, benzene, asphaltene, and resin, with 128, 140, 138, 116, 86, 52, 300, 974, 2, and 6 molecules, respectively, in a 10.6 × 10.6 × 4.7 nm 3 simulation box). 17,67 In model Oil-B, we have added organic acids to model Oil-A representing the Arabian crude oil's total acid number (6.5 mg KOH/g oil), 71 taking into account the high aromaticity of the crude oil. We have added ethylbenzoic, nonanoic, and 3-cyclohexyl propanoic acids (264, 88, and 176 molecules, respectively, divided over the two oil− water interfaces).…”