Measurement of critical properties of fluorinated ethers and amines

Using static-type apparatus, we measured critical properties of five fluorinated ethers and three fluorinated amines, which are expected to be promising candidates for advanced refrigerants, blowing agents and cleaning fluids. The advantage of the measuring apparatus was that a small amount of a sam...

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Bibliographic Details
Published in:Fluid phase equilibria 1998-02, Vol.144 (1), p.113-117
Main Authors: Sako, Takeshi, Yasumoto, Masahiko, Sato, Masahito, Kitao, Osamu, Ishiguro, Koji, Kato, Masahiro
Format: Article
Language:English
Subjects:
Amines
Blowing agents
Chemical thermodynamics
Chemistry
Critical property
Exact sciences and technology
Fluorinated amine
Fluorinated ether
Fluorine compounds
General and physical chemistry
General. Theory
Group contribution method
Refrigerants
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Summary:Using static-type apparatus, we measured critical properties of five fluorinated ethers and three fluorinated amines, which are expected to be promising candidates for advanced refrigerants, blowing agents and cleaning fluids. The advantage of the measuring apparatus was that a small amount of a sample was sufficient to determine the properties accurately. The uncertainties were ±30 mK in temperature, ±2 kPa in pressure, and ±0.2% in density for the critical properties. The critical properties were estimated fairly well by Lydersen's group contribution method.
ISSN:0378-3812
1879-0224
DOI:10.1016/S0378-3812(97)00249-5