A deduction on the structure of molten KAlF4

Abstract

Many quasi-binary phase diagrams which comprised of KAlF4 with other fluorides or complex fluorides have made by visual-polythermal. DTA and XRD methods. Results indicated that the more composition of second components is similar to that of KAlF4, the more influence on liquid and eutectic of the system would be observed. Stable and simple fluorides are difficultly soluble in molten KAlF4 below 800℃. From mentioned, it is deduced that the structure of molten KAlF4 appears to be comprised of moleoular KAlF4 as well as ions K^+ and AlF4^-. Molecular KAlF4 is relatively stable and is the main part in the melt.

Key words: FUSED SALTS, PHASE DIAGRAM

CLC Number:

O612

Cite this article

ZHANG QIYUN;CAO JIE. A deduction on the structure of molten KAlF4[J]. Acta Chimica Sinica, 1995, 53(8): 765-768.

Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks

[1]	Liu Ming, Yang Yingzi, Qiu Feng. A Strong Segregation Theory for Ring Block Copolymers [J]. Acta Chim. Sinica, 2017, 75(9): 884-892.
[2]	Wang Liang, Zhu Hong, Yan Yongsheng. Measurement and Correlation of the Phase Diagram Data for 1-Ethyl-3-methylimidazolium Dimethyl phosphate+K₃PO₄/ K₂HPO₄/K₂CO₃+H₂O lonic Liquids Aqueous Two-Phase Systems at T＝298.15 K [J]. Acta Chimica Sinica, 2012, 70(06): 707-713.
[3]	MA Li, JIA Chun-Yue, GAN Meng-Yu, BAI You-Qian, LI Zhi-Chun, HAO Shao-Na, LIU Xing-Min. Magnetic Field Effects on the Phase Behavior of a Microemulsion System during Composite Emulsifier/Aniline Polymerization [J]. Acta Chimica Sinica, 2011, 69(9): 1053-1059.
[4]	ZHOU, Huan* CUI, Shi-Guang SHA, Zuo-Liang YUAN, Jian-Jun. Non-equilibrium Behavior of Salt-forming in Boiling Evaporation Process for the System of MgSO4-Na2SO4-H2O at 100 ℃ [J]. Acta Chimica Sinica, 2008, 66(12): 1483-1489.
[5]	TIAN Peng*^,1; SONG Xi-Ming²; LI Ying²; DUAN Ji-Dong; LIANG Zhi-De³; ZHANG Hui. Studies on Room Temperature Ionic Liquid FeCl₃-BPC System [J]. Acta Chimica Sinica, 2006, 64(23): 2305-2309.
[6]	CHAI Jin-Ling, LI Dong-Xiang, LI Gan-Zuo, LIANG Fang-Zhen, ZHANG Gao-Yong. XIA Rui. Studies on the Middle-Phase Microemulsions of Alkyl Polyglucosides with Mixed Hydrocarbon Chain [J]. Acta Chimica Sinica, 2004, 62(1): 47-52.
[7]	Gou Guojing;Gao Shiyang;Xia Shuping;Zhu Lixia;Wang Bo. Liquid-solid Phase Diagram of Thermodynamic Non-equilibrium State of MgO·nB_2O_3-18%MgSO_4-H_2O System at 0 ℃ [J]. Acta Chimica Sinica, 2003, 61(9): 1434-1440.
[8]	Yang Fang;Liang Yi;Yang Fang. Unfolding of Lysozyme Induced by Urea and Guanidine Hydrochloride Studied by "Phase Diagram" Method of Fluorescence [J]. Acta Chimica Sinica, 2003, 61(6): 803-807.
[9]	Mo Chunsheng. Investigaion of Microstructure of Microemulsion in the CTAB/n_C_4H_9OH/n-C_7H_(16)/H_2O System [J]. Acta Chimica Sinica, 2002, 60(7): 1179-1185.
[10]	Tian Peng;Yang Jiazhen;Xu Weiguo;Song Ximing;Liu Jianguo;Xue Hong;Liu Shangzhang;Liang Zhide. Studies on Room Temperature Ionic Liquid Containing Rarely Scattered Metals [J]. Acta Chimica Sinica, 2002, 60(10): 1811-1816.
[11]	Zhu Wangbuyao;Shi Hongtao;Huang Jianbin;He Xu. Study on reversed microemulsion and reversed micelle in catanionic surfactant system [J]. Acta Chimica Sinica, 2001, 59(6): 913-917.
[12]	Gao Shengli;Ji Mian;Chen Sanping;Hu Rongzu;Shi Qizhen. Study on phase chemistry and thermochemistry of coordination of chromium nitrate to histidine [J]. Acta Chimica Sinica, 2001, 59(6): 931-936.
[13]	Teng Hongni;Chen Li;Liu Honglai;Hu Ying. Study on the phase diagrams of aqueous two-phase and microstructure of cationic-anionic mixed surfactants [J]. Acta Chimica Sinica, 2001, 59(3): 383-387.
[14]	Wang Hongxia;Zhang Gaoyong. Studyies of linear viscoelasticity of liquid crystal of a nonionic surfactant [J]. Acta Chimica Sinica, 2001, 59(11): 1888-1893.
[15]	Li Ganzuo;Gu Qiang;Yan Longcheng. Study of lyotropic liquid crystal containing nonionic surfactant of AEO-9 [J]. Acta Chimica Sinica, 2001, 59(1): 6-10.

KAlF4熔液结构的推断