Partial molar volumes of transfer of some disaccharides from water to aqueous guanidine hydrochloride solutions at 298.15 K

摘要: monohydrate and D(+)-trehalose dihydrate] have been determined in water aqueous guanidine hydrochloride solutions (0.5, 1.0, 4.0 , 6.0 8.0 m) at 298. 15 K from density measurements using a vibrating-tube digital densitometer. Partial molar volumes infinite dilution (\1'\ ) v values utilised to estimate partial of transfer (11"2.,,) for various disaccharides solutions. The 11"2." found be positive all the increase with concentration co­ solute which suggest that overall structural order is enhanced ration alized terms solute-co-solute interactions co-sphere overlap hydration model. Pair, triplet quartet interaction coefficients also calcul ated McMillan-Mayer approach their sign magnitude discussed. study carbohydrates/saccharides has become subject increasing interest because multidimensional physical, biochemical, industrially useful properties these compounds l . 5