Quasielastic and inelastic neutron-scattering (QENS and INS) experiments on concentrated-methanol aqueous solutions

N. de Souza IPNS

We have investigated methanol + water mixtures by QENS and INS. Motivations are presented for studying alcohol + water mixtures in general. To quantify the alcohol microscopic dynamics, QENS experiments were performed on xA(CH₃OD)+(1-xA)D₃O at alcohol mole fraction xA=0.8,0.9,1.0, from room temperature to the liquidus of the solutions. To characterize the hydrogen bonding, INS experiments were performed on xA(CD₃OH)+(1-xA)H₃O at similar mole fractions, on the amorphous solid solutions.

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