摘要
本文探讨了二氯化钴在乙醇、水混合溶剂中的热致变色作用。它们的热致变色不仅与溶液的浓度有关,还与溶液中乙醇与水的比例有关。该体系的热致变色主要与溶液中下列平衡的移动密切相关: [Co(H_2O)_6]^(2+)+2Cl^-+2EtOH≒Co(EtOH)
It is approached that thermocbromism of CoCl_2 in the mixture of EtOH and H_2O in the papper. The thermochromism of the System not only depends on the concentration of solution, but also is related to the proportion of EtOH to H_2O.The observed thermochromism is primarily due to movement of the equilibrium as follows:[Co(EtOH)_2Cl_2] + 6H_2 O≒[Co(H_2O)_6]~2+2Cl^-+2EtOH
出处
《苏州大学学报（自然科学版）》
CAS
1990年第4期515-519,共5页
Journal of Soochow University(Natural Science Edition)
关键词
二氯化钴
乙醇
水
热致变色
Cobaltous chloride, Ethyl alcohol, water, Thermochromism
