Chakraborty Nabaparna, Juglan Kailash Chandra, Kumar Harsh
Department of Physics, Lovely Professional University, Phagwara, Punjab 144401, India.
Department of Chemistry, Dr. B R Ambedkar NIT, Jalandhar, Punjab 144011, India.
ACS Omega. 2020 Dec 7;5(50):32357-32365. doi: 10.1021/acsomega.0c04292. eCollection 2020 Dec 22.
The densities and speed of sound for liquid mixtures containing vitamin B (niacin) at 0.01, 0.03, and 0.05 mol·kg concentrations in aqueous propylene glycol and hexylene glycol at the variation of temperatures from 293.15 to 308.15 K have been measured using an Anton Paar DSA 5000 M. From volumetric experimental data, apparent molar volume ( ), partial molar volume ( ), and partial molar volume of transfer (Δ ) are calculated along with the apparent molar isentropic compression ( ), partial molar isentropic compression ( ), and partial molar isentropic compression of transfer (Δ ) using experimental acoustic data. The positive volumetric data (i.e., apparent molar volume and partial molar volume) indicates strong solute-solvent interactions inside the mixture. Along with these values, the empirical constants , , and with the pair and triplet coefficients ( , , , ) are also calculated.
使用安东帕DSA 5000 M测量了在293.15至308.15 K温度变化下，含有浓度为0.01、0.03和0.05 mol·kg的维生素B（烟酸）的液态混合物在丙二醇水溶液和己二醇水溶液中的密度和声速。根据体积实验数据，计算了表观摩尔体积（ ）、偏摩尔体积（ ）和转移偏摩尔体积（Δ ），以及使用实验声学数据计算的表观摩尔等熵压缩系数（ ）、偏摩尔等熵压缩系数（ ）和转移偏摩尔等熵压缩系数（Δ ）。正的体积数据（即表观摩尔体积和偏摩尔体积）表明混合物内部溶质 - 溶剂之间存在强烈的相互作用。除了这些值之外，还计算了经验常数 、 、 以及二元和三元系数（ 、 、 、 ）。
