Thermodynamic-Acoustic Studies of Mixture Vitamin B7 with Glycols at Different Temperatures

The density and speed of sound for an aqueous solution containing Vitamin B7 (biotin) at variant temperatures from (288.15K to 318.15K) and (0.000 to 0.003) mol.kg-1 concentration has been measured with Anton Paar DSA 5000 M at constant pressure 0.1 MPa. The observed data were used to derive various thermo-acoustic parameters. Acoustic impedance, adiabatic compressibility, Vander Waal’s constant, Rao’s constant, Wada’s constant, and intermolecular free length were determined by the obtained speed of sound and density values. In addition, the ternary mixture of biotin and glycols (Propylene glycol and hexylene glycol) shows the intermolecular (solute-solvent) interactions inside the liquid solution.