化学通报（网络版）
化學通報（網絡版）
화학통보（망락판）
Chemistry Online
2008年
1期
1-4
,共4页
李松菀%黄雪莉*%马风云%冯国娜
李鬆菀%黃雪莉*%馬風雲%馮國娜
리송완%황설리*%마풍운%풍국나
四元体系%硝酸盐%液固相平衡%溶解度
四元體繫%硝痠鹽%液固相平衡%溶解度
사원체계%초산염%액고상평형%용해도
Quaternary system%Nitrate%Phase equilibrium%Solubility
采用等温溶解平衡法研究298.16K时四元体系K+, Mg2+//Cl-, NO3--H2O的液固相平衡关系,测定了溶解度数据,并绘制出平衡相图.研究表明,在298.16K时,该体系相图有5个单盐结晶区、6条单变量溶解度曲线和3个零变量点.5个单盐结晶区分别对应于KNO3、KCl、Mg(NO3)2·6H2O、MgCl2·6H2O 和复盐KCl·MgCl2·6H2O,其中KNO3的结晶区最大, MgCl2·6H2O的结晶区最小.
採用等溫溶解平衡法研究298.16K時四元體繫K+, Mg2+//Cl-, NO3--H2O的液固相平衡關繫,測定瞭溶解度數據,併繪製齣平衡相圖.研究錶明,在298.16K時,該體繫相圖有5箇單鹽結晶區、6條單變量溶解度麯線和3箇零變量點.5箇單鹽結晶區分彆對應于KNO3、KCl、Mg(NO3)2·6H2O、MgCl2·6H2O 和複鹽KCl·MgCl2·6H2O,其中KNO3的結晶區最大, MgCl2·6H2O的結晶區最小.
채용등온용해평형법연구298.16K시사원체계K+, Mg2+//Cl-, NO3--H2O적액고상평형관계,측정료용해도수거,병회제출평형상도.연구표명,재298.16K시,해체계상도유5개단염결정구、6조단변량용해도곡선화3개령변량점.5개단염결정구분별대응우KNO3、KCl、Mg(NO3)2·6H2O、MgCl2·6H2O 화복염KCl·MgCl2·6H2O,기중KNO3적결정구최대, MgCl2·6H2O적결정구최소.
Solubilities in the quaternary system K+, Mg2+//Cl-, NO3--H2O were investigated by isothermal method at 298.16K. Based on the solubility’s data obtained, the phase diagram of the system was plotted. The dry salt phase diagram of the system K+, Mg2+//Cl-, NO3--H2O consists of five crystallization regions corresponding to KNO3 , KCl, Mg(NO3)2·6H2O, MgCl2·6H2O and KCl·MgCl2·6H2O. The respective crystallization areas are being separated from each other by six univariant curves which intersect in three invariant points. The crystallization area of KNO3 is the largest, while the one of MgCl2·6H2O is the smallest.
