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2010•Journal of Chemical & Engineering DataOpen access

Carbon Dioxide + Fluoromethane and Nitrous Oxide + Fluoromethane: Solid−Liquid Equilibria Measurements

Giovanni Di Nicola, Matteo Moglie, Giulio Santori, Roman Stryjek, Fabio Polonara

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Abstract

A recently built experimental setup was employed for the estimation of the solid−liquid equilibria (SLE) of alternative refrigerant systems. The behavior of two binaries, that is, carbon dioxide + fluoromethane (CO 2 + R41) and nitrous oxide + fluoromethane (N 2 O + R41), was measured down to temperatures of 126.5 K. To confirm the reliability of the apparatus, the triple points of the pure fluids constituent of the binary systems were measured. All triple-point data measured revealed a generally good consistency with the literature. The results obtained for the mixtures were corrected by the Rossini method and interpreted by means of the Schröder equation.

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What this paper is about

A recently built experimental setup was employed for the estimation of the solid−liquid equilibria (SLE) of alternative refrigerant systems. The behavior of two binaries, that is, carbon dioxide + fluoromethane (CO 2 + R41) and nitrous oxide + fluoromethane (N 2 O + R41), was measured down to temperatures of 126.5 K. To confirm the reliability of the apparatus, the triple points of the pure fluids constituent of the binary systems were measured. All triple-point data measured revealed a generally good consistency with the literature. The results obtained for the mixtures were corrected by the Rossini method and interpreted by means of the Schröder equation.

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Available abstract

A recently built experimental setup was employed for the estimation of the solid−liquid equilibria (SLE) of alternative refrigerant systems. The behavior of two binaries, that is, carbon dioxide + fluoromethane (CO 2 + R41) and nitrous oxide + fluoromethane (N 2 O + R41), was measured down to temperatures of 126.5 K. To confirm the reliability of the apparatus, the triple points of the pure fluids constituent of the binary systems were measured. All triple-point data measured revealed a generally good consistency with the literature. The results obtained for the mixtures were corrected by the Rossini method and interpreted by means of the Schröder equation.

Key concepts: Chemistry, Nitrous oxide, Refrigerant, Carbon dioxide, Triple point, Thermodynamics, Critical point (mathematics), Halocarbon

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