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For three derivatives of 4-amino antipyrene, density, viscosity and ultrasonic velocity are measured at 318.15K in 1,4-dioxane (DO) and dimethylformamide (DMF). From these experimental data, various acoustical properties such as specific impedance (Z), isentropic compressibility (κ s ), Rao's molar sound function (R m ), the van der Waals constant (b), molar compressibility (W), intermolecular...
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