The thermal denaturation of hen egg-white lysozyme was studied in the presence of 2,2,2-trifluoroethanol (TFE) at various pH values using micro differential scanning calorimetry. Quantitative thermodynamic parameters accompanying the thermal transitions were evaluated. It is observed that thermal unfolding of lysozyme in the presence of TFE upto a concentration of 4.0 mol dm(-3) follows a two-s...

The apparent molar volumes (?v) and viscosity B coefficients (Jones Dole)for Magnesium sulphate, Aluminium ammonium sulphate Potassium aluminium in aqueous Dimethylformamide (DMF) Dimethyl sulphoxide (DMSO) were evaluated from density (?) (?) at various temperatures as 308.15, 313.15, 318.15 323.15K with help of bicapillary pycnometer Ubbelohde viscometer instruments respectively. densitydata f...

The combined effect of pressure and temperature on hydrophobic hydration of a nonpolar methanelike solute is investigated by extensive simulations in the TIP4P model of water. Using test-particle insertion techniques, free energies of hydration under a range of pressures from 1 to 3000 atm are computed at eight temperatures ranging from 278.15 to 368.15 K. Corresponding enthalpy, entropy, and h...

The densities and ultrasound velocities in azithromycin solutions ethanol, 1-propanol 1-butanol at various concentrations three different temperatures (T = 300.15, 305.15, 310.15 K) have been measured. Based on the data obtained, derived acoustical parameters viz, acoustic impedance (Z), adiabatic compressibility (β), intermolecular free length (Lf), volume (Vf), Rao’s constant (R), Wada’s (W),...

There are a number of techniques available to estimate saturated-liquid molar or specific volumes or densities of liquids. In this study, a new empirical correlation is presented to calculate volume of saturated liquids as a function of critical volume, reduced temperature and acentric factor. An optimization algorithm is utilized to obtain unknown parameters of this correlation by fitting them...