Home

Citation: SANG Shi-Hua, TANG Ming-Lin, YIN Hui-An, ZENG Ying. A Study on the Phase Equilibrium of the Quaternary System K₂CO₃-Na₂CO₃-Li₂CO₃-H₂O at 288 K[J]. Chinese Journal of Applied Chemistry, ;2004, 21(5): 509-511. shu

A Study on the Phase Equilibrium of the Quaternary System K₂CO₃-Na₂CO₃-Li₂CO₃-H₂O at 288 K

1.
College of Materials and Bioengineering, Chengdu Univerisity of Technology, Chengdu 610059

Corresponding author: SANG Shi-Hua,
Received Date: 30 July 2003
Available Online: 1 December 2003
Fund Project: 国家自然科学基金(49773200)资助课题 (49773200)

The solubilities and properties such as density, electrical conductivity and pH of the solutions in the quaternary system K₂CO₃-Na₂CO₃-Li₂CO₃-H₂O at 288 K have been studied by isothermal equilibrium method. Based on the solubility data, the phase diagram of the system was obtained, which comprises two invariant points E and F and five uninvariant curves E3E, E4E, E1F, E2F and EF. The four stationary phases in crystallization regions are K₂CO₃·3/2H₂O, Na₂CO₃·10H₂O, NaKCO₃·6H₂O and Li₂CO₃. The composition of the solution corresponding to E is ω(K₂CO₃)=51.34%, ω(Na₂CO₃)=2.94%, ω(Li₂CO₃)=0.21% and the equilibrium solids are K₂CO₃· 3/2H₂O+NaKCO₃·6H₂O+Li₂CO₃. The composition of the solution for F is ω(K₂CO₃)=15.19%, ω(Na₂CO₃)=13.62%, ω(Li₂CO₃)=0.70% and the equilibrium solids are Na₂CO₃· 10H₂O+NaKCO₃·6H₂O+Li₂CO₃. Potassium carbonate has strong salting-out effect on Na₂CO₃ and Li₂CO₃. The physico-chemical properties of the system have been discussed briefly.
- salt-water system,
- phase equilibrium,
- alkali-metal carbonate,
- solubility,
1. [1]
  Fei Nie , Xueru Liu , Zhuang Hui , Yan Li , Bin Cui . Curriculum Ideological and Political Design of Comprehensive Experiment of Soda Ash Preparation from Salt Lake Water. University Chemistry, 2024, 39(2): 121-126. doi: 10.3866/PKU.DXHX202308054
2. [2]
  Yan Xin , Yunnian Ge , Zezhong Li , Qiaobao Zhang , Huajun Tian . Research Progress on Modification Strategies of Organic Electrode Materials for Energy Storage Batteries. Acta Physico-Chimica Sinica, 2024, 40(2): 2303060-0. doi: 10.3866/PKU.WHXB202303060
3. [3]
  Xiaowu Zhang , Pai Liu , Qishen Huang , Shufeng Pang , Zhiming Gao , Yunhong Zhang . Acid-Base Dissociation Equilibrium in Multiphase System: Effect of Gas. University Chemistry, 2024, 39(4): 387-394. doi: 10.3866/PKU.DXHX202310021
4. [4]
  Jiaxin Su , Jiaqi Zhang , Shuming Chai , Yankun Wang , Sibo Wang , Yuanxing Fang . Optimizing Poly(heptazine imide) Photoanodes Using Binary Molten Salt Synthesis for Water Oxidation Reaction. Acta Physico-Chimica Sinica, 2024, 40(12): 2408012-0. doi: 10.3866/PKU.WHXB202408012
5. [5]
  Ling Li , Guocheng Wang . 知识图谱与AI助教在无机化学混合式教学中的初步探索——以“沉淀溶解平衡”的教学为例. University Chemistry, 2025, 40(6): 1-8. doi: 10.12461/PKU.DXHX202407063
6. [6]
  Shi-Yu Lu , Wenzhao Dou , Jun Zhang , Ling Wang , Chunjie Wu , Huan Yi , Rong Wang , Meng Jin . Amorphous-Crystalline Interfaces Coupling of CrS/CoS₂ Few-Layer Heterojunction with Optimized Crystallinity Boosted for Water-Splitting and Methanol-Assisted Energy-Saving Hydrogen Production. Acta Physico-Chimica Sinica, 2024, 40(8): 2308024-0. doi: 10.3866/PKU.WHXB202308024
7. [7]
  Xinhao Yan , Guoliang Hu , Ruixi Chen , Hongyu Liu , Qizhi Yao , Jiao Li , Lingling Li . Polyethylene Glycol-Ammonium Sulfate-Nitroso R Salt System for the Separation of Cobalt (II). University Chemistry, 2024, 39(6): 287-294. doi: 10.3866/PKU.DXHX202310073
8. [8]
  Lianghong Ye , Junqing Ni , Zhongyi Yan , Zhanming Zhang , Can Zhu , Mo Sun . Chemical Fuel-Driven Non-Equilibrium Color Change. University Chemistry, 2025, 40(3): 349-354. doi: 10.12461/PKU.DXHX202406109
9. [9]
  Yong Shu , Xing Chen , Sai Duan , Rongzhen Liao . How to Determine the Equilibrium Bond Distance of Homonuclear Diatomic Molecules: A Case Study of H₂. University Chemistry, 2024, 39(7): 386-393. doi: 10.3866/PKU.DXHX202310102
10. [10]
  Yonghui Wang , Weilin Chen , Yangguang Li . Knowledge Construction of “Solubility of Inorganic Substances” in Elemental Chemistry Teaching. University Chemistry, 2024, 39(4): 261-267. doi: 10.3866/PKU.DXHX202312102
11. [11]
  Yuena Yang , Xufang Hu , Yushan Liu , Yaya Kuang , Jian Ling , Qiue Cao , Chuanhua Zhou . The Realm of Smart Hydrogels. University Chemistry, 2024, 39(5): 172-183. doi: 10.3866/PKU.DXHX202310125
12. [12]
  Limin Shao , Na Li . A Unified Equation Derived from the Charge Balance Equation for Constructing Acid-Base Titration Curve and Calculating Endpoint Error. University Chemistry, 2024, 39(11): 365-373. doi: 10.3866/PKU.DXHX202401086
13. [13]
  Xiao Liu , Guangzhong Cao , Mingli Gao , Hong Wu , Hongyan Feng , Chenxiao Jiang , Tongwen Xu . Seawater Salinity Gradient Energy’s Job Application in the Field of Membranes. University Chemistry, 2024, 39(9): 279-282. doi: 10.3866/PKU.DXHX202306043
14. [14]
  Xiaohui Li , Ze Zhang , Jingyi Cui , Juanjuan Yin . Advanced Exploration and Practice of Teaching in the Experimental Course of Chemical Engineering Thermodynamics under the “High Order, Innovative, and Challenging” Framework. University Chemistry, 2024, 39(7): 368-376. doi: 10.3866/PKU.DXHX202311027
15. [15]
  Changyan Sun , Hualei Zhou , Bin Dong . Application of “PBL” Teaching Mode in Inorganic Chemistry Experimental Education in the Perspective of Course Ideology and Politics: Taking Preparation of Manganese Carbonate as an Example. University Chemistry, 2024, 39(11): 378-383. doi: 10.12461/PKU.DXHX202402016
16. [16]
  Yu Peng , Jiawei Chen , Yue Yin , Yongjie Cao , Mochou Liao , Congxiao Wang , Xiaoli Dong , Yongyao Xia . Tailored cathode electrolyte interphase via ethylene carbonate-free electrolytes enabling stable and wide-temperature operation of high-voltage LiCoO₂. Acta Physico-Chimica Sinica, 2025, 41(8): 100087-0. doi: 10.1016/j.actphy.2025.100087
17. [17]
  Yajin Li , Huimin Liu , Lan Ma , Jiaxiong Liu , Dehua He . Photothermal Synthesis of Glycerol Carbonate via Glycerol Carbonylation with CO₂ over Au/Co₃O₄-ZnO Catalyst. Acta Physico-Chimica Sinica, 2024, 40(9): 2308005-0. doi: 10.3866/PKU.WHXB202308005
18. [18]
  Chengqian Mao , Yanghan Chen , Haotong Bai , Junru Huang , Junpeng Zhuang . Photodimerization of Styrylpyridinium Salt and Its Application in Silk Screen Printing. University Chemistry, 2024, 39(5): 354-362. doi: 10.3866/PKU.DXHX202312014
19. [19]
  Wenjie SHI , Fan LU , Mengwei CHEN , Jin WANG , Yingfeng HAN . Synthesis and host-guest properties of imidazolium-functionalized zirconium metal-organic cage. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 105-113. doi: 10.11862/CJIC.20240360
20. [20]
  Qiang Zhang , Yuanbiao Huang , Rong Cao . Imidazolium-Based Materials for CO₂ Electroreduction. Acta Physico-Chimica Sinica, 2024, 40(4): 2306040-0. doi: 10.3866/PKU.WHXB202306040

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(536)
HTML views(49)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return

A Study on the Phase Equilibrium of the Quaternary System K2CO3-Na2CO3-Li2CO3-H2O at 288 K

Metrics

通讯作者: 陈斌, bchen63@163.com

A Study on the Phase Equilibrium of the Quaternary System K₂CO₃-Na₂CO₃-Li₂CO₃-H₂O at 288 K