Physicochemical properties of aqueous solutions of sodium glycinate in the non-precipitation regime from 298.15 to 343.15 K  

甘氨酸钠水溶液在298.15K到343.15K温度下非沉淀方法中的理化性质（英文）

作　　者：Muhammad Shuaib Shaikh Azmi Mohd Shariff Mohd Azmi Bustam Ghulam Murshid 

机构地区：[1]Research Center for CO_2 Capture(RCCO_2C),Department of Chemical Engineering,Universiti Teknologi PETRONAS

出　　处：《Chinese Journal of Chemical Engineering》2015年第3期536-540,共5页中国化学工程学报（英文版）

基　　金：Universiti Teknologi PETRONAS for providing financial support(Grant number YUTP-15-8209-005);RCCO_2C for technical support to complete the present research work

摘　　要：The physicochemical properties,including the density,viscosity,and refractive index of aqueous solutions of sodium glycinate as a solvent for CO_2 absorption in the non-precipitation regime were measured under the wide temperature range of 298.15 to 343.15 K.The concentration of the sodium glycinate in an aqueous form in the non-precipitation regime was identified up to 2.0 mol ? L^(-1).The coefficients of thermal expansion values were estimated from measured density data.It was found that,the densities,viscosities and refractive indices of the aqueous sodium glycinate decrease with an increase in temperature,whereas with increasing sodium glycinate concentration in the solution,all three properties increase.Thermal expansion coefficients slightly increase with rising temperature and concentration.The measured values of density,viscosity and refractive index were correlated as a function of temperature by using the least squares method.The predicted data obtained from correlation equations for all measured properties were in fairly good agreement with the experimental data.The physicochemical properties,including the density,viscosity,and refractive index of aqueous solutions of sodium glycinate as a solvent for CO2 absorption in the non-precipitation regime were measured under the wide temperature range of 298.15 to 343.15 K.The concentration of the sodium glycinate in an aqueous form in the non-precipitation regime was identified up to 2.0 mol ？ L-1.The coefficients of thermal expansion values were estimated from measured density data.It was found that,the densities,viscosities and refractive indices of the aqueous sodium glycinate decrease with an increase in temperature,whereas with increasing sodium glycinate concentration in the solution,all three properties increase.Thermal expansion coefficients slightly increase with rising temperature and concentration.The measured values of density,viscosity and refractive index were correlated as a function of temperature by using the least squares method.The predicted data obtained from correlation equations for all measured properties were in fairly good agreement with the experimental data.

关 键 词：Sodium glycinate Physicochemical property Density Viscosity Refractive index 

分 类 号：O645.16[理学—物理化学]