Metastable phase equilibria of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions at 308.15 K

ISL OpenIR > 青海盐湖研究所知识仓储

	Metastable phase equilibria of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions at 308.15 K
	Deng, Tianlong 1,2; Meng, Lingzong 1,3; Sun, Bai 1
	2008-03-01
发表期刊	JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷号	53 期号:3 页码:704-709
摘要	The metastable solubility of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions and the physicochemical properties corresponding to density, viscosity, pH value, and refractive index at 308.15 K have been studied with the isothermal evaporation method. According to the experimental data, the metastable equilibrium phase diagrams of dry salt and the water phase diagram of the system were plotted. In the dry-salt phase diagram, there are two invariant points, five univariant curves, and four crystallizing regions corresponding to sodium chloride, potassium chloride, borax (Na2B4O7 center dot 10H(2)O), and potassium tetraborate tetrahydrate (K2B4O7 center dot 4H(2)O). The crystallized region of borax is the largest, while the phase region of NaCl is the smallest with the highest concentration and a strong salting-out effect to borax. There are neither double salts nor solid solutions formed in the metastable system. When compared with the stable phase diagram at 298.15 K of the system, the areas of both metastable phase regions of borax and potassium chloride are enlarged, while other metastable phase regions are decreased. The calculated values of densities and refractive index in the metastable quaternary system with the empirical equations are in good agreement with the experimental values.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5832
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Chengdu Univ Technol, Coll Mat Chem & Chem Engn, Chengdu 610059, Peoples R China 3.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Deng, Tianlong,Meng, Lingzong,Sun, Bai. Metastable phase equilibria of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions at 308.15 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2008,53(3):704-709.
APA	Deng, Tianlong,Meng, Lingzong,&Sun, Bai.(2008).Metastable phase equilibria of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions at 308.15 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,53(3),704-709.
MLA	Deng, Tianlong,et al."Metastable phase equilibria of the reciprocal quaternary system containing sodium, potassium, chloride, and borate ions at 308.15 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 53.3(2008):704-709.