Wang Huaixin, Li Zhong, Ma Yitai and Lu Canren(Thermal Energy Research Institute of Tianjain University, et al. EXPERIMENTAL STUDY ON VAPOR PRESSURE AND CRITICAL PARAMETERS OF CH_3CF_3[J]. CIESC Journal, 1993, (3).
Wang Huaixin, Li Zhong, Ma Yitai and Lu Canren(Thermal Energy Research Institute of Tianjain University, et al. EXPERIMENTAL STUDY ON VAPOR PRESSURE AND CRITICAL PARAMETERS OF CH_3CF_3[J]. CIESC Journal, 1993, (3).DOI:
Sixty one vapor pressure data of CH3CF3 above 230K have been measured with a precision of |ΔT≤ 28mK
|Δp|≤ 1.4kPa
which showed
obvious deviation from references. The critical parameters were determined as ρc = 442± 4kg/ m3
TC = 346.16 ± 0.05K and pc = 3.781± 0.006MPa by observing the disappearance of vapor-liquid meniscus and the critical opalescence. The normal boiling point was predicted as Tb = 225.69K.