Phase equilibria in the LiF-LiCl-LiBr-Li2MoO4 quaternary system were studied by differential thermal analysis. The composition of an eutectic was determined to be 20.0 mol % LiF, 27.3 mol % LiCl, 43.1 mol % LiBr, and 9.6 mol % Li2MoO4, with the melting point being 424°C....
Li＋是一种硬酸，H2O分子、F－离子为硬碱，且硬度次序是F－＞H2O，因而Li＋与F－结合稳定，在水中溶解度小，但遇到软性较大的Cl－、Br－、I－时，Li＋趋向于与H2O结合，所以LiCl、LiBr、LiI在水中溶解度较大，且四种LiX随着卤离子软性的增加而溶解度逐渐增大。LiI，因为离子性最强，最易电离LiI...
The LiF–LiCl–LiBr–Li 2 CrO 4 –KCl–KBr hexatope was studied experimentally by differential thermal analysis (DTA) and X-ray powder diffraction analysis (XRD). The polythermal section passing through two low–melting quaternary eutectic points included in the boundary elements of the hexatope...
碱金属卤化物是典型的离子晶体.它们的晶格能与成正比(d0是晶体中最邻近的带有异性电荷离子的核间距).下面说法错误的是( ) 晶格能/kJ·mol-1 离子半径/pm ① LiF LiCl LiBr LiI 1 031 845 807 752 Li+ Na+ K+ 60 95 133 ② NaF NaCl NaBr NaI 915777
解释下列事实:(1)卤化锂在非极性溶剂中的溶解度顺序为:(LiI > LiBr > LiCl > LiF).(2)虽然锂的电离能比铯大,但E^() ((Li^+/Li))
(1)卤化锂在非极性溶剂中的溶解度顺序为:LiI>LiBr>LiCl>LiF。 (2)虽然锂的电离能比铯大,但 (Li+/Li)却比 (Cs+/Cs)小。 (3)虽然 (Li+/Li)< (Na+/Na),但金属锂与水反应不如金属钠与水反应剧烈。 试题答案 在线课程 (1)非极性或弱极性溶质的溶解性可以用相似相溶原理来说明,随着F-、Cl-、Br...
LiF-LiCl-LiBr-Li2MoO4 quaternary systemLushchikovaO.I.FrolovE.I.GubanovaT.V.GarkushiningentaconnectRussian Journal of Inorganic Chemistry C/c of Zhurnal Neorganicheskoi Khimii
The LiF–LiCl–LiBr–Li2CrO4–KCl–KBr hexatope was studied experimentally by differential thermal analysis (DTA) and X-ray powder diffraction analysis (XRD). The polythermal section passing through two low–melting quaternary eutectic points included in the boundary elements of the hexatope was ...
Consequently, the corrosion of type 316 stainless steel by flowing (about 15 mm/s) LiF-LiCl-LiBr at a maximum temperature of 535°C was studied to determine whether compatibility with the structural material would be limiting in such a system. The corrosion rate was found to be low (<2 ...
二硫化钴采用高温固相合成的方法制备了二硫化钴材料,对其物相,形貌,金相和比表面积进行了表征,并重点考察了二硫化钴形貌对放电性能的影响.结果表明:比表面积大的二硫化钴,在体系LiB/LiF-LiCl-LiBr/CoS_2中520℃下第一平台电压有所提高,脉冲放电性能提高,极化内阻降低.放电有效容量随正极材料比表面积的变化呈现规律...