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本工作设计了一套测定共沸数据的差分沸点仪。考核结果表明,该装置具有良好的测温稳定性和组成可靠性;可测定低沸点或高沸点的共沸数据,不需要组成分析也能确定共沸组成。用该装置测定了16个体系的共沸数据.关联得到了共沸温度与共沸组成、共沸压力的关系式。计算值与实测值吻合良好。
This work designed a set of differential boiling point instrument for the determination of azeotropic data. Examination results show that the device has good temperature stability and composition reliability; can be determined low boiling point or high boiling point azeotropic data, without composition analysis can determine the azeotropic composition. The azeotropic data of 16 systems were determined by this apparatus, and the relationship between azeotropic temperature and azeotropic composition and azeotropic pressure was obtained. The calculated value is in good agreement with the measured value.