Study on dissolution and phase equilibrium in ulexite-water system

ISL OpenIR > 青海盐湖研究所知识仓储

	Study on dissolution and phase equilibrium in ulexite-water system
	Chen, RY ; Gao, SY ; Feng, SH ; Xia, SP ; Chen, CL
	2004-07-01
发表期刊	CHINESE JOURNAL OF INORGANIC CHEMISTRY
卷号	20 期号:7 页码:812-818
关键词	Ulexite Dissolution Phase Equilibrium Transformation
摘要	Ulexite dissolution in water has been studied in the wide temperature range from 10degreesC to 93degreesC and two higher temperatures at 120degreesC and 240degreesC. The analytical results showed that ulexite dissolved congruently from 10degreesC to 35degreesC and incongruently from 40 to 68degreesC. The solid component of ulexite, NaCaB(5)O(6)(OH)(6)(.)5H(2)O was dehydrated to form NaCaB(5)O(6)(OH)(6)(.)H(2)O from 50 to 68degreesC and finally amorphous solid at 68degreesC. This amorphous solid converted into priceite at 71degreesC and then converted completely to priceite at the boiling point(93degreesC) of the solution. At both 120 and 240degreesC, the dissolution of ulexite was an incongruent process. Above 120degreesC, ulexite became amorphous solid and then transformed into priceite. In addition to the solid to solid transformation, crystallization of priceite from the solution has also been observed. Based on our experimental results, mechanisms of dissolution, transformation, and crystallization of borate in ulexite-water system are discussed.
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/363002/6124
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.Jiangsu Polytech Univ, Dept Chem Engn, Changzhou 213016, Peoples R China 2.Acad Sinica, Inst Salt Lakes, Xian 710043, Peoples R China 3.Jilin Univ, Key Lab Inorgan Hydrothermal Synth & Preparat, Changchun 130023, Peoples R China 4.Natl Sun Yat Sen Univ, Dept Chem, Kaohsiung 80424, Taiwan
推荐引用方式 GB/T 7714	Chen, RY,Gao, SY,Feng, SH,et al. Study on dissolution and phase equilibrium in ulexite-water system[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2004,20(7):812-818.
APA	Chen, RY,Gao, SY,Feng, SH,Xia, SP,&Chen, CL.(2004).Study on dissolution and phase equilibrium in ulexite-water system.CHINESE JOURNAL OF INORGANIC CHEMISTRY,20(7),812-818.
MLA	Chen, RY,et al."Study on dissolution and phase equilibrium in ulexite-water system".CHINESE JOURNAL OF INORGANIC CHEMISTRY 20.7(2004):812-818.