The Vapor Pressure and Critical Constants of Neopentane

The vapor pressure of neopentane has been measured from 50° to the critical point. The equation, log10p(atmos)=3.901633−1136.462T+4.99118×10−4T  (T=t∘C+273.16),gives a fair representation of the observations. A study of the compressibility of neopentane in the critical region gives for the critical...

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Veröffentlicht in:The Journal of chemical physics 1951-07, Vol.19 (7), p.948-949
Hauptverfasser: Beattie, James A., Douslin, Donald R., Levine, Samuel W.
Format: Artikel
Sprache:eng
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Zusammenfassung:The vapor pressure of neopentane has been measured from 50° to the critical point. The equation, log10p(atmos)=3.901633−1136.462T+4.99118×10−4T  (T=t∘C+273.16),gives a fair representation of the observations. A study of the compressibility of neopentane in the critical region gives for the critical temperature, pressure, volume, and density the values: tc = 160.60°±0.05°C (Int.), pc = 31.57±0.03 normal atmospheres, Vc = 0.303 liter per mole (4.20 ml per g), dc = 3.30 mole/liter (0.238 g per ml). The uncertainty in the critical volume and density is 1 percent.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.1748412