摘要
The behavior of N,N,N′,N′-tetrabutylmalonamide(TBMA) in extraction of Tm(Ⅲ) using toluene as diluent has been investigated. The effects of the concentrations of TBMA, nitric acid, lithium nitrate, and temperature on the extraction have been studied. The composition of the extracted species was found to be Tm(NO3)3·3TBMA as characterized by IR spectrometry. The apparent equilibrium constant of extraction has been determined to be (0.61±0.18) L^6/mol^-6 at 298 K. Enthalpy of the extraction reaction is -27.61 kJ/mol.
The behavior of N,N,N′,N′-tetrabutylmalonamide(TBMA) in extraction of Tin(Ⅲ) using toluene as diluent has been investigated. The effects of the concentrations of TBMA, nitric acid, lithium nitrate, and temperature on the extraction have been studied. The composition of the extracted species was found to be Tm(NO_3)_3·3TBMA as characterized by IR spectrometry. The apparent equilibrium constant of extraction has been determined to be(0.61±0.18) L^6/mol^(-6) at 298 K. Enthalpy of the extraction reaction is-27.61 kJ/mol.
出处
《应用化学》
CAS
CSCD
北大核心
2004年第4期419-421,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金(20301008)
山东省中青年学术骨干基金
