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1)  stable salt
离子交换平衡模型
2)  ion exchange equilibrium
离子交换平衡
1.
Cd2+ mass concentrations at ion exchange equilibrium under different temperatures and different initial Cd2+ mass concentrations were calculated and the ion exchange isotherms at different temperatures were plotted.
在静态条件下,测定了钠型方沸石的阳离子交换容量;计算了不同温度、不同初始Cd2+质量浓度下达到离子交换平衡时的Cd2+质量浓度和交换度,并绘制了不同温度下的离子交换等温线;对钠型方沸石与Cd2+的离子交换热力学特性进行了研究,通过选择性校正系数和交换平衡常数,导出了反应的热力学函数:反应标准摩尔焓变(ΔrHm),反应标准摩尔吉布斯自由能变(ΔrGm)和反应标准摩尔熵变(ΔrSm)。
2.
Ion exchange equilibrium of neutral amino acids on 732 strong acid cation exchange resin in non buffer systems were studied and an equilibrium model was proposed.
研究了非缓冲体系中性氨基酸在732型强酸性阳离子交换树脂上的离子交换平衡,并提出了平衡模型。
3.
The ion exchange equilibrium data of K+—NH+4 on the novel ion-sieve for potassium have been determined,and the ion exchange isotherms at the temperature of 0℃,25℃,50℃ and 75℃ has been drew respectively.
测定了0℃、25℃、50℃和75℃时新型钾离子筛的K+—NH4+离子交换平衡数据,绘制出相应的离子交换等温线。
3)  cation-exchange equilibrium method
离子交换平衡法
1.
The stability and co-ordination number of the complex compounds of humic acid with Zn~(2+) and/or Cd~(2+) at different pH levels were determined with the cation-exchange equilibrium method.
用离子交换平衡法研究了不同pH下胡敏酸与锌、镉单独及复合存在下形成络合物的稳定性及配位数。
2.
The effects of pH, ionic strength and temperature on the stability constants of humic acid-nickel were studied using cation-exchange equilibrium method, in order to detect the stability characteristics of humic acid-nickel complexes under different pH, ionic strength and temperature conditions, which will be great significant to the study on the environmental behavior of nickel ions.
为了探讨pH、离子强度、温度对胡敏酸-镍络合稳定性的影响规律,阐明镍在环境中的迁移转化、生物活性及污染控制等提供理论依据,用离子交换平衡法研究了pH、离子强度、温度对重庆市缙云山常绿阔叶林表层腐殖土胡敏酸-镍络合物稳定常数的影响。
3.
Stability constant of copper-humic acid complexes in three kinds ofShaanxi soils:old manured red loessal soil,dark cultivated loessal soil and yellow loessalsoil were determined using cation-exchange equilibrium method.
用离子交换平衡法测定了陕西主要土壤土、黑垆土、黄绵土胡敏酸-铜络合物的稳定常数。
4)  ion-exchange equilibrium
离子交换平衡
1.
Combining Donnan equilibrium theory and the weak electrolytic property of carboxyl, a model to describe the ion-exchange equilibrium of S-adenosyl-L-methionine (SAM) on weak acid resin D113 was derived,which assuming SAM to be a positively charged ion.
结合Donnan膜平衡理论与树脂的弱电解质性质,在假设S-腺苷-L-蛋氨酸(SAM)分子带一价正电荷的基础上,建立了SAM在D113弱酸树脂上的离子交换平衡模型
2.
The ion-exchange equilibrium of bovine serum albumin (BSA) on an anion exchanger was studied.
目前已提出多种模型用于描述离子交换平衡 ,其中应用最多的是基于Langmuir理论的经验模型[2 ] 。
5)  ion balance model
离子平衡模型
6)  ion-exchange model
离子交换模型
补充资料:离子交换平衡
分子式:
CAS号:

性质:离子交换树脂在溶液中溶胀后,交换功能团的离子在树脂网状内部的水中扩散,溶液中的离子扩散至树脂表面,然后再扩散至内部与功能团的离子交换。被交换的离子由树脂内部扩散至溶液中。交换过程是可逆的。当溶液中的离子扩散进入树脂内部的速率与交换的离子扩散进入溶液的速率相等时,达到了离子交换平衡,符合质量作用定律。交换反应如下式所示:    Mn++nR—A←→Rn-M+nA+用浓度表示的平衡常数又称选择性系数。它反映了树脂对M和A的亲和力的大小。式中下标r表示在树脂相的浓度,s表示在溶液中的浓度。  

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