Volumetric Properties and Ion Interactions for Sodium Hypophosphite Aqueous Solution from 283.15 to 363.15 K at 101.325 kPa

被引：2

作者：

Alimov, Umarbek ^{[1
,2
]}

Zhao, Kaiyu ^{[1
]}

Guo, Yafei ^{[1
]}

Meng, Lingzong ^{[3
]}

Deng, Tianlong ^{[1
]}

机构：

[1] Tianjin Univ Sci & Technol, Coll Chem Engn & Mat Sci, Tianjin 300457, Peoples R China

[2] Acad Sci Uzbek, Inst Gen & Inorgan Chem, Tashkent 100170, Uzbekistan

[3] Linyi Univ, Sch Chem Engn, Linyi 276000, Shandong, Peoples R China

来源：

RUSSIAN JOURNAL OF INORGANIC CHEMISTRY | 2020年 / 65卷 / 12期

关键词：

sodium hypophosphite; density; thermal expansion coefficients; apparent and partial molar volumes; Pitzer ion-interaction model; DIFFERENT TEMPERATURES; NANO TIO2; WATER; SULFATE; SYSTEMS; SOLUBILITY; CHLORIDE; DENSITY; ACID;

D O I：

10.1134/S0036023620120025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Densities of sodium hypophosphite aqueous solution (NaH2PO2) with the molality varied from 1.019143 to 10.43887 mol kg(-1) at temperature intervals of 5 K range from 283.15 to 363.15 K at 101.325 kPa were measured by a precise Anton Paar Digital vibrating-tube densimeter. From the density data, the thermal expansion coefficients, apparent volume and partial molar volumes were obtained. According to the Pitzer ion-interaction equation of the apparent molar volumes, the Pitzer single-salt parameters and their temperature-dependent correlation for NaH2PO2 were firstly obtained by the least-squares method. The model shown that apparent molar volumes agree well with the experimental values, which indicated the single salt parameters and the temperature-dependent formula are reliable.

引用

页码：1913 / 1921

页数：9

共 38 条

[1] Study of the solubility, viscosity and density in Na+, Zn2+/Cl- - H2O, Na+ - Zn2+ - (H2PO2)- - H2O, Na+, Cl-/(H2PO2)- - H2O, and Zn2+, Cl-/(H2PO2)- - H2O ternary systems, and in Na+, Zn2+/Cl-, (H2PO2)-//H2O reciprocal quaternary system at 273.15 K [J].