Determination of the Critical Temperature and Critical Pressure of Five Compounds

Abstract

Abstract: The critical properties of five compounds, including propanal, butanal, 1-pentanal, 2-
methel butanal and trimer of ethanal, were determined for the first time by a new capillary
quick-flow method. The apparatus was improved with a capillary tube and checked with hexane
and 1-heptene as standard reagents. The experimental results proved that the determination
of critical properties by quick-flow method with a capillary tube apparatus was successful.

Key words: critical temperature, critical pressure, quick-flow method

摘要： The critical properties of five compounds, including propanal, butanal, 1-pentanal, 2-
methel butanal and trimer of ethanal, were determined for the first time by a new capillary
quick-flow method. The apparatus was improved with a capillary tube and checked with hexane
and 1-heptene as standard reagents. The experimental results proved that the determination
of critical properties by quick-flow method with a capillary tube apparatus was successful.

关键词: critical temperature;critical pressure;quick-flow method

MA Peisheng, GAO Jin, XIA Shuqian. Determination of the Critical Temperature and Critical Pressure of Five Compounds[J]. .

马沛生, 高进, 夏淑倩. 五种化合物临界温度和临界压力的测定[J]. CIESC Journal.

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