论文部分内容阅读
实验研究了低共熔溶剂[1Ch Cl:2EG]/Cr Cl3?6H2O的熔点、密度、表面张力、粘度和电导率与Cr Cl3?6H2O浓度和温度的关系.结果表明,[1Ch Cl:2EG]/Cr Cl3?6H2O的最低共熔点为211 K,具有较宽的低温液程;密度与温度呈良好的线性关系并随Cr Cl3·6H2O浓度升高略微增大;表面张力比水小但比传统的有机溶剂高,并随Cr Cl3?6H2O浓度升高而略微增大;温度从293 K升高到343 K,[1Ch Cl:2EG]/Cr Cl3?6H2O的粘度显著降低,而电导率则明显增大,Cr Cl3?6H2O浓度为0.3 mol/L时,该溶剂体系粘度最小,电导率最高;Cr Cl3?6H2O和[1Ch Cl:2EG]/(0.3 mol/L)Cr Cl3?6H2O在923 K下分解后产物都是CRO3;1Ch Cl:2EG和[1Ch Cl:2EG]/(0.3 mol/L)Cr Cl3?6H2O均可在383 K内保持稳定.
The relationship between the melting point, density, surface tension, viscosity and conductivity of the low eutectic solvent [1Ch Cl: 2EG] / Cr Cl3? 6H2O and the concentration and temperature of CrCl3? 6H2O was investigated experimentally.The results showed that [1Ch Cl: 2EG] / Cr Cl3? 6H2O has a minimum eutectic point of 211 K and has a wide range of low temperature liquid. The density has a good linear relationship with temperature and slightly increases with increasing Cr Cl3 · 6H2O concentration. The surface tension is smaller than that of water Of organic solvent and slightly increased with the increase of Cr Cl 3 · 6H 2 O. The viscosity of [1Ch Cl: 2EG] / Cr Cl 3 · 6H 2 O decreased significantly while the temperature increased from 293 K to 343 K, while the conductivity was significant Cr Cl3 6H2O and [1Ch Cl: 2EG] / (0.3 mol / L) Cr Cl3 • 6H2O at 923 K The products of the decomposition were CRO3. Both 1Ch Cl: 2EG and [1ch Cl: 2EG] / (0.3mol / L) CrCl3? 6H2O could be stable within 383K.