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NaCl-NH4Cl-H2O三元水盐体系在高原大气压下的相平衡研究
Phase Equilibrium of Ternary Water-salt System NaCl-NH4Cl-H2O at Plateau Atmosphere
【摘要】 通过湿渣法测定了水中NH4Cl和NaCl的溶解度数据,同时研究了三元水盐体系NaCl-NH4Cl-H2O在25℃时的固液相平衡关系.采用Pitzer模型计算了该三元水盐体系相平衡溶解度,比较了计算值和实验值,结果基本吻合.并从定量的角度描述了θNaNH4和ΨNaNH4Cl各以±10%变动时,对体系溶解度的影响.
【Abstract】 Using moist solid method,the phase equilibrium of ternary water-salt system NaCl-NH4ClH2O at 25℃ was investigated.The solubility data of NaCl and NH4 Cl in water were obtained.Pitzermodel method was utilized to calculate the solubility data of phase equilibrium for ternary water-salt system.The results show the coincide between the calculated value and experimental value.Furthermore,the solubility predicition results of NaCl-NH4Cl-H2O system at 25℃are calculated,and solubility variations of the system whenθNaNH4andΨNaNH4Clwere changed with±10%.
【关键词】 水盐体系;
溶解度;
Pitzer模型;
混合参数;
【Key words】 salt-water system; solubility; Pitzer-model; mixing parameter;
【Key words】 salt-water system; solubility; Pitzer-model; mixing parameter;
【基金】 教育部“春晖计划”(Z2012085)
- 【文献出处】 兰州文理学院学报(自然科学版) ,Journal of Lanzhou University of Arts and Science(Natural Science Edition) , 编辑部邮箱 ,2014年04期
- 【分类号】O642.42
- 【被引频次】1
- 【下载频次】111