摘要
２－羟基－４－仲辛基－二苯甲酮肟（Ｎ５３０）曾用于金属钴、镍的分离［１］。但对其萃钯热力学研究尚未见报道。为此本文对Ｎ５３０在高氯酸介质中萃取钯的热力学进行了研究，测定了该萃取反应的表观平衡常数和热力学函数。１实验部分１．１试剂与溶液Ｎ５３０由中国科...
The thermodynamics of the extraction of palladium with 2 hydroxyl 4 sec n octyl diphenyloxime(N 530 ) from perchloric acidic medium was studied.By investigating the influences of temperature and [N 530 ] upon the distribution ratio D of Pd(Ⅱ),it is concluded that when the initial concentration of ClO - 4 is 0.1mol/L,the relationship between lgD and lg[N 530 ] at 25℃ can be represented as lg D =1.024lg[N 530 ]+2.752 and that when the initial concentration of [N 530 ] and pH are 1.0×10 -3 mol/L and 0.80 respectively,the relationship between lg D and 1/T can be shown as lg D=1634.1/T -5.276 The values of thermodynamic function at 25℃ are as follows: K=14.19 Δ G =-6.58kJ/mol Δ H =31.29kJ/mol Δ S =127.0J/mol·K.
出处
《化学研究与应用》
CAS
CSCD
1999年第1期77-79,共3页
Chemical Research and Application
