Phase Equilibrium of the ErCl3-CdCl2-HCl-H2O System at 25 °C and Characterization of the New Compounds

Phase Equilibrium System of HoCl3−CdCl2−HCl(7.52 %)−H2O at 298.15 K and Standard Molar Enthalpy of Formation of Cd4HoCl11·14H2O

“…But for the quaternary systems TbCl 3 −CdCl 2 −HCl−H 2 O and DyCl 3 −CdCl 2 −HCl−H 2 O, there are only three equilibrium solid phases (CdCl 2 ·H 2 O, Cd 4 TbCl 11 ·14H 2 O, and TbCl 3 ·6H 2 O) and (CdCl 2 ·H 2 O, Cd 9 Dy 2 Cl 24 ·29H 2 O, and DyCl 3 ·6H 2 O). We re-examined the YCl 3 −CdCl 2 −HCl−H 2 O, ErCl 3 −CdCl 2 −HCl−H 2 O, and LuCl 3 −CdCl 2 −HCl−H 2 O systems and confirmed that the YCl 3 −CdCl 2 −HCl−H 2 O system is composed of four equilibrium solid phases: CdCl 2 ·H 2 O, Cd 4 YCl 11 ·13H 2 O, Cd 5 Y 2 Cl 16 ·26H 2 O, and YCl 3 ·6H 2 O, respectively. For the ErCl 3 −CdCl 2 −HCl−H 2 O system, four equilibrium solid phases (CdCl 2 ·H 2 O, Cd 9 Er 2 Cl 24 ·29H 2 O, CdEr 7 Cl 23 ·42H 2 O, and ErCl 3 ·6H 2 O) were observed.…”

“…Phase equilibria of quaternary systems of RECl 3 −CdCl 2 −HCl(∼8 %)−H 2 O (RE = La, Ce, Pr, Nd, Eu, Tb, Dy, Y, Er, Lu) at 298.15 K have been previously reported. − It is highly valuable and important for us to understand the phase relations and interactions of RECl 3 and CdCl 2 in aqueous media. Li et al and Wang et al , reported the presence of four equilibrium solid−phase regions (CdCl 2 ·H 2 O, Cd 8 RECl 19 · n H 2 O, Cd 4 RECl 11 ·12H 2 O, and RECl 3 ·7H 2 O) (RE = La, Pr, n = 16, 20) in the LaCl 3 −CdCl 2 −HCl−H 2 O and CdCl 2 −PrCl 3 −HCl−H 2 O quaternary systems.…”

“…Phase equilibria of quaternary systems of RECl 3 -CdCl 2 -HCl(∼8 %)-H 2 O (RE ) La, Ce, Pr, Nd, Eu, Tb, Dy, Y, Er, Lu) at 298.15 K have been previously reported. [1][2][3][4][5][6][7][8][9][10] It is highly valuable and important for us to understand the phase relations and interactions of RECl 3 and CdCl 2 in aqueous media. Li et al and Wang et al 1,3 reported the presence of four equilibrium solid-phase regions (CdCl The purity reached in this way was found to be 99.9 mass %.…”

Solubility, Density and Refractive Index for the Ternary Systems of 1,2-Propanediol, MCl (M=Na, K, Rb, Cs) and H₂O at 298.15 and 308.15 K

“…13,14 Some of domestic group also made a detailed study of such systems. [15][16][17] In previous work, our research groups [18][19][20][21][22] have investigated the solubility of the ternary systems of rare alkali metal (Rb and Cs) salts in the mixed solvents of water and organic solvent. Moreover, the phase equilibria of the quaternary systems of two salts in the mixted solvents were studied.…”

Phase Equilibrium System of LuCl3−CdCl2−HCl(7.47 %)−H2O at 298.15 K and Standard Molar Enthalpies of Formation of New Solid-Phase Compounds

“…Phase equilibria of quaternary systems of RECl 3 -CdCl 2 -HCl(8 %)-H 2 O (RE ) La, Ce, Pr, Nd, Eu, Dy, Y, Er) at 298.15 K have been previously reported. [1][2][3][4][5][6][7][8] La, Pr) are very similar because they all have the 8:1 type and 4:1 type compounds, although for the three quaternary systems RECl 3 -CdCl 2 -HCl-H 2 O (RE ) Ce, Eu, Nd), their phase chemical reactions have both similarities (all having a 9:1 type compound) and dissimilarities (all having various types of compounds). The quaternary system YCl 3 -CdCl 2 -HCl-H 2 O and the four quaternary systems RECl 3 -CdCl 2 -HCl-H 2 O (RE ) La, Ce, Pr, Eu) were compared further, where it was found that their phase chemical reactions also have both similarities (all having a 4:1 type compound) and dissimilarities.…”