Apparent molar volume, viscosity B-coefficient, and adiabatic compressibility of tetrabutylammonium bromide in aqueous ascorbic acid solutions at T = 298.15, 308.15, and 318.15 K

Apparent molar volumes and compressibilities of tetrabutyl-ammonium bromide in organic solvents

“…Analogically to the ammonium salt, it is observed excellent linear correlation between intermolecular free length (L f ), relative association (R A ), Rao's molar sound function (R m ), and molar concentrations (c). The obtained correlation coefficients, their standard deviations are shown in table 19. Inspections of the data in tables 13, 14, 18, and 19 reveals, that L f and R m data are very similar for both salts, the same is observed for R A value in propanol and acetone, but in case of butanol these data have changed less with concentration for phosphonium salt.…”

“…Parameters of equation (1) for the speed of sound (and the standard deviations) for tetrabutylammonium bromide in 1-propanol, 1-butanol, and acetone solutions at 298.15 K. The reliability of equation (19) has been tested for 42 solvents [32]. The required derivative of isothermal compressibility with respect to pressure was estimated using definition of j T :…”

“…In case of tetrabutylammonium bromide, the apparent molar volumes and compressibilities of the salt has been obtained in simple binary (aqueous [7] and nonaqueous [8][9][10][11][12][13][14][15]) solutions as well as in the mixed solvent systems [16,17] or in the presence of the additional solute [18,19]. The volumetric characteristics with the other thermodynamic data are useful to studying molecular nature of interactions and salvation in solution.…”

Volumetric Properties of Sodium Cyclamate Solutions in Presence of Glucose and Sucrose

“…For structure making solute, the Hepler's constant should be positive [18]. The positive values of Hepler's constants suggest structure making behaviour of Na-cycl in water and in (0.1, 0.3, and 0.5) m glucose/sucrose.…”

Elucidation of Interactions between l‐Ascorbic Acid and Mixed Micellar Aggregates of Catanionic {Sodium Dodecylsulfate + Cetyltrimethylammonium Bromide} Surfactants via Physicochemical and Spectroscopic Studies

“…The chief role of ʟ‐ascorbic acid (vitamin C) is its immune‐stimulating effect as it provides defense against infections such as the common cold (Banipal et al, ; Davies et al, ). ʟ‐Ascorbic acid is a renowned antioxidant, free radical scavenger, improves the eye's capability, and hinders the development of advanced age correlating the muscular degeneration (Drach et al, ; Roy et al, ). The systems containing surfactants and ʟ‐ascorbic acid may act as models for understanding the interactions and action mechanisms in multicomponent biological systems (Harutyunyan et al, ).…”