Volumetric and Acoustic Behavior of Sodium Cyclamate in Aqueous System from 293.15 K to 318.15 K

被引：13

作者：

Jamal, Muhammad Asghar ^{[1
,2
]}

Khosa, Muhammad Kaleem ^{[1
]}

Rashad, Muhammad ^{[1
]}

Mansha, Asim ^{[1
]}

Naqvi, Syed Ali Raza ^{[1
]}

机构：

[1] Govt Coll Univ, Dept Chem, Faisalabad 38000, Pakistan

[2] Bahauddin Zakariya Univ, Inst Chem Sci, Multan 60800, Pakistan

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2016年 / 45卷 / 07期

关键词：

Partial molar volume; Partial molar compressibility; Apparent specific volume; Sodium cyclamate; Hydration number; MOLAR VOLUMES; LIQUID WATER; DENSITY; TASTE; TEMPERATURE; HYDRATION; MIXTURES;

D O I：

10.1007/s10953-016-0488-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Density (rho) and sound velocity (u) measurements were carried for aqueous solutions of sodium cyclamate (SC) from 293.15 to 318.15 K. Apparent molar and specific volumes, isentropic apparent molar compressibility and hydration numbers were computed from the experimental measurements. Apparent molar volumes (I broken vertical bar (V) ) of SC show negative deviations from the Debye-Huckel limiting law and the values obtained for I broken vertical bar (V) at given temperatures and concentrations were used as a direct measure of the ion-ion and ion-solvent interactions. Interactions causing a sweet taste require a specific volume to stimulate receptor sites from water and possibly also in the biophase. Furthermore, the partial molar expansibility (I broken vertical bar (E) (A degrees) ), Hepler's constant (a,(2) I broken vertical bar (V) (A degrees) /a,T (2) ) and thermal expansion coefficient have been estimated. This study will help to elucidate the structural interactions of SC with water and its taste in foods.

引用

页码：1009 / 1020

页数：12

共 31 条

[1] Comparative study of density, sound velocity and refractive index for (water plus alkali metal) phosphates aqueous systems at T = (298.15, 303.15, and 308.15) K [J].