EBULLIOMETRIC MEASUREMENT OF THE VAPOR-PRESSURE OF 1-CHLORO-1,1-DIFLUOROETHANE AND 1,1-DIFLUOROETHANE

被引：16

作者：

SILVA, AM

WEBER, LA

机构：

[1] NATL INST STAND & TECHNOL,CHEM SCI & TECHNOL LAB,DIV THERMOPHYS,GAITHERSBURG,MD 20899

[2] CATHOLIC UNIV RIO DE JANEIRO,INST TECHNOL,BR-22453 RIO JANEIRO,BRAZIL

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 1993年 / 38卷 / 04期

关键词：

D O I：

10.1021/je00012a043

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The vapor pressures of 1-chloro-1,1-difluoroethane (R142b) and 1,1-difluoroethane (R152a) have been measured at temperatures between 224.8 and 284.7 K for R142b and between 219.9 and 273.1 K for R152a by a comparative ebulliometric technique. Our results have been combined with selected published results to provide a smoothing equation for the vapor pressure. For R142b, our equation is valid from 200 to 300 K while for R152a the temperature range goes from 215 K to the critical temperature, near 386 K.

引用

页码：644 / 646

页数：3

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