摘要
测定了丁炔二醇与水二元体系的固液平衡关系,发现丁炔二醇与水的三相点温度为-10.3℃,对应的丁炔二醇浓度为37.46w％。溶解度随温度变化符合下式 lnx=-(2713.89/T)+8.13 (x>0.11) x=(831.13/T)-3.05 (x≤0.11) 另外,实验中还发现,对于易形成过饱和溶液的体系,不宜用步冷曲线法测定固液平衡关系。
Solid-liquid equilibrium for binary systems containing hutynediol and water has been determined. Phase diagram studies indicate that in the system there is a eutectic point at-10.3℃ containing 37.46w％ butynediol. The temperature dependeney of solubility can be represented by the equation:lnx=-(2713.89)/T+8.13 (x>0.11)x=(831.13)/T-3.05 (x≤0.11)The results indicate that for solid-liquid equilibrium determination of systems liable to forming supersaturation solution, thermal analysis method is not suitable.
出处
《石油化工》
CAS
CSCD
北大核心
1991年第3期176-179,共4页
Petrochemical Technology
