碱金属卤化物在水-乙醇混合溶剂中的热力学性质

Study of Thermodynamical Properties of Alkali Metals Halide in Water Ethanol Mixtures

用国产ＲＤ４９６－Ⅱ型微热量热计测定了２９８．１５Ｋ时ＮａＣｌ，ＫＣｌ，ＲｂＣｌ，ＣｓＣｌ，ＮａＢｒ，ＫＢｒ，ＮａＩ，ＫＩ８种盐在纯水中的溶解热，ＮａＣｌ，ＫＣｌ，ＲｂＣｌ，ＣｓＣｌ４种盐在７个不同组成的富水乙醇混合溶剂中的溶解热．用ＣｒｉｓＣｏｂｂｌｅ方法外推得到盐的标准溶解热ΔｓＨ０．

Enthalpies of solution of NaCl,KCl,RbCl,CsCl,NaBr,KBr,NaI,KI in water and of NaCl,KCl,RbCl,CsCl in water ethanol mixtures at 298.15 K have been measured by using home made RD496-Ⅱ microcalorimeter.The standard solution enthalpies Δ sH 0 have been obtained by using Criss Cobble extrapolating method.