Phase Equilibrium of Quaternary System Cd2+//Cl–, SO42–, NO3–-H2O at 298 K

Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (3): 482-485.

• Articles • Previous Articles Next Articles

Phase Equilibrium of Quaternary System Cd2+//Cl–, SO42–, NO3–-H2O at 298 K

HUANG Yi*, ZOU Fang, NI Shi-jun and SANG Shi-hua

Department of Geochemistry, Chengdu University of Technology, Chengdu 610059, P. R. China

Received:2010-08-31 Revised:2010-11-26 Online:2011-05-25 Published:2011-04-29
Contact: HUANG Yi E-mail:huangyi@cdut.cn
Supported by:
Supported by the National Natural Science Foundation of China(No.40803031).

Abstract

Abstract: Solid-liquid equilibrium of quaternary system Cd2+//Cl–, SO42–, NO3–-H2O at 298 K was studied by means of an isothermal solution saturation method. Experimental results indicate that there are three univariant curves BE, AE and CE, one invariant point E and three crystallization fields in the quaternary system. The quaternary system belongs to a simple type, and there are no double salts or solid solution existing. The crystallization zones of equilibrium solid phases are CdCl2·5/2H2O(AEB field), 3CdSO4·8H2O(AEC field) and Cd(NO3)2·4H2O(BEC field), respectively. The composition of the invariant point is CdCl2, Cd(NO3)2, CdSO4 and H2O and the contents of which are 17.02%, 45.50%, 4.52% and 32.96%, respectively. The physico-chemical properties of solution in the quaternary system show regular changes along with the increased cadmium concentration. The results indicate that Cd(NO3)2 possessed the highest solubility among those three salts, which means a strong transfer of Cd ion and a high pollution risk of soil environment. And the solubility of CdSO4 would be restrained as the salts existing together.

Key words: Cadmium, Quaternary system, Isothermal method, Solid-liquid equilibrium

HUANG Yi*, ZOU Fang, NI Shi-jun and SANG Shi-hua. Phase Equilibrium of Quaternary System Cd2+//Cl–, SO42–, NO3–-H2O at 298 K[J]. Chemical Research in Chinese Universities, 2011, 27(3): 482-485.

[1]	JIN Bao, ZHAI Tianyou. 2D Cadmium Chalcogenides for Optoelectronics [J]. Chemical Research in Chinese Universities, 2020, 36(4): 493-503.
[2]	GUO Jian, WU Peng, LI Yaoyao, ZHANG Min, LI Wenxuan, ZHOU Huan. Solid-liquid Phase Equilibria in the Process of Producing Lithium Hydroxide from Lithium Sulfate [J]. Chemical Research in Chinese Universities, 2019, 35(6): 1018-1023.
[3]	DU Cuixia, CHEN Juan, BAIYIN Menghe. Solvothermal Syntheses and Characterization of Three One-dimension Cadmium Selenidoarsenates[Ni(1,2-dap)₃] [As₂CdSe₄],[Zn(1,2-dap)₃] [As₂CdSe₄] and[Ni(en)₃] [As₂CdSe₄] [J]. Chemical Research in Chinese Universities, 2019, 35(4): 560-563.
[4]	YU Xiaoping, WANG Qin, GUO Yafei, DENG Tianlong. Metastable Phase Equilibrium in the Reciprocal Quaternary System LiCl+MgCl₂+Li₂SO₄+MgSO₄+H₂O at 348.15 K and 0.1 MPa [J]. Chemical Research in Chinese Universities, 2018, 34(5): 798-802.
[5]	WU Liting, ZENG Ying, YAN Dongming, FENG Shan, YU Xudong. Metastable Phase Equilibrium of the Quaternary System Na⁺, Rb⁺, Mg²⁺//Cl^--H₂O at 298.2 K [J]. Chemical Research in Chinese Universities, 2018, 34(5): 823-827.
[6]	SABAH Hajji, THOURAYA Turki, MELEK Hajji, NADIA Mzoughi. Application of Response Surface Methodology for Optimization of Cadmium Ion Removal from an Aqueous Solution by Eggshell Powder [J]. Chemical Research in Chinese Universities, 2018, 34(2): 302-310.
[7]	CUI Shu, LI Xuesong, LI Yanjuan, ZHAO Haixin, WANG Yuanyuan, LI Nan, LI Xiaotian, LI Guodong. Synthesis of CdS/m-TiO₂ Mesoporous Spheres and Their Application in Photocatalytic Degradation of Rhodamine B Under Visible Light [J]. Chemical Research in Chinese Universities, 2017, 33(3): 436-441.
[8]	TANG Xiaojian, WANG Jianhui, ZHAO Ke, XUE Honghai, TA Chunhong. A Simple and Rapid Label-free Fluorimetric “Turn Off-on” Sensor for Cadmium Detection Using Glutathione-capped CdS Quantum Dots [J]. Chemical Research in Chinese Universities, 2016, 32(4): 570-575.
[9]	WANG Xiaofang, SONG Qingshan, PAN Ying, QIU Shilun, XUE Ming. Two New Cadmium Metal-organic Frameworks Based on a Mixed-donor Ligand [J]. Chemical Research in Chinese Universities, 2016, 32(4): 539-544.
[10]	HUANG Yantao, LAN Yuwei, YI Qilei, HUANG Hualin, WANG Yilin, LU Jianping. Microwave-assisted Synthesis of CdTe Quantum Dots Using 3-Mercaptopropionic Acid as Both a Reducing Agent and a Stabilizer [J]. Chemical Research in Chinese Universities, 2016, 32(1): 16-19.
[11]	WANG Wei, ZHANG Ying-mu, LI Yao-xian, ZHAO Qing. Easily Accessible and Highly Selective “Turn-on” Fluorescent Sensor for Imaging Cadmium in Living Cells [J]. Chemical Research in Chinese Universities, 2013, 29(4): 632-637.
[12]	DENG Dong-sheng, WANG Li, PEI Ya-mei, FENG Lu, LIU Chang-lin. Synthesis, Crystal Structures and Catalysis of Dinuclear Cd(Ⅱ) Complexes Bridged by Unusual (N,O,O′)-Coordinated α-Amino Acids [J]. Chemical Research in Chinese Universities, 2012, 28(1): 73-78.
[13]	LU Min*, GUAN Xiao-hui and WEI De-zhou. Removing Cd2+ by Composite Adsorbent Nano-Fe3O4/Bacterial Cellulose [J]. Chemical Research in Chinese Universities, 2011, 27(6): 1031-1034.
[14]	YUE Yang, GE Mei-ying, LIU Yan, WU Jie, CHEN Ping, LIN Lie, LIU Yu-feng, SUN Yan, CHEN Xin* and DAI Ning*. Highly Stable CdSe/CdS/ZnS Fluorophores in Acidic Environment: Acile Preparation and Modification of Core/shell/shell Nanocrystals [J]. Chemical Research in Chinese Universities, 2010, 26(6): 871-875.
[15]	WANG Lin-lin, ZHANG Jie, LIU Hai-yan, ZHANG Hai-tao, WANG Hong-yan, YANG Xiu-rong and WANG Ying-hua*. Application of Back-propagation Artificial Neural Network in Speciation of Cadmium [J]. Chemical Research in Chinese Universities, 2010, 26(6): 899-904.

Phase Equilibrium of Quaternary System Cd2+//Cl–, SO42–, NO3–-H2O at 298 K

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments