Measurements of the Vapor-Liquid Coexistence Curve for the Binary R12 + R22 System in the Critical Region

Yukihiro Higashi, Shlro Okazaki, Yoshinori Takalshl, Masahlko Uematsu, Kolchl Watanabe

研究成果: ジャーナルへの寄稿記事

45 引用 (Scopus)

抄録

Measurements of the vapor-liquid coexistence curve In the critical region for the binary dichlorodlfluoromethane (CCI2F2, R12) + chlorodlfluoromethane (CHCIF2, R22) system were made by visual observation of the disappearance of the meniscus at the vapor-liquid Interface within an optical cell. Fifty-one saturated-vapor densities and thirty-seven saturated-liquid densities for seven different compositions of 0, 10, 20, 30, 50, 75, and 100 wt % R22 between 355 and 385 K (T, > 0.98) were obtained In the range of densities 280-892 kg/m3 (0.5 < p, < 1.5). The experimental error of temperature, density, and mass fraction was estimated within ±10 mK, ±0.5% and ±0.05 %, respectively. The composition dependence of the critical parameters Is analyzed and discussed on the basis of these measurements.

元の言語英語
ページ(範囲)31-36
ページ数6
ジャーナルJournal of Chemical and Engineering Data
29
発行部数1
DOI
出版物ステータス出版済み - 1 1 1984
外部発表Yes

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Vapors
Density of liquids
Density of gases
Liquids
Chemical analysis
Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

これを引用

Measurements of the Vapor-Liquid Coexistence Curve for the Binary R12 + R22 System in the Critical Region. / Higashi, Yukihiro; Okazaki, Shlro; Takalshl, Yoshinori; Uematsu, Masahlko; Watanabe, Kolchl.

:: Journal of Chemical and Engineering Data, 巻 29, 番号 1, 01.01.1984, p. 31-36.

研究成果: ジャーナルへの寄稿記事

Higashi, Yukihiro ; Okazaki, Shlro ; Takalshl, Yoshinori ; Uematsu, Masahlko ; Watanabe, Kolchl. / Measurements of the Vapor-Liquid Coexistence Curve for the Binary R12 + R22 System in the Critical Region. :: Journal of Chemical and Engineering Data. 1984 ; 巻 29, 番号 1. pp. 31-36.
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abstract = "Measurements of the vapor-liquid coexistence curve In the critical region for the binary dichlorodlfluoromethane (CCI2F2, R12) + chlorodlfluoromethane (CHCIF2, R22) system were made by visual observation of the disappearance of the meniscus at the vapor-liquid Interface within an optical cell. Fifty-one saturated-vapor densities and thirty-seven saturated-liquid densities for seven different compositions of 0, 10, 20, 30, 50, 75, and 100 wt {\%} R22 between 355 and 385 K (T, > 0.98) were obtained In the range of densities 280-892 kg/m3 (0.5 < p, < 1.5). The experimental error of temperature, density, and mass fraction was estimated within ±10 mK, ±0.5{\%} and ±0.05 {\%}, respectively. The composition dependence of the critical parameters Is analyzed and discussed on the basis of these measurements.",
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AU - Higashi, Yukihiro

AU - Okazaki, Shlro

AU - Takalshl, Yoshinori

AU - Uematsu, Masahlko

AU - Watanabe, Kolchl

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N2 - Measurements of the vapor-liquid coexistence curve In the critical region for the binary dichlorodlfluoromethane (CCI2F2, R12) + chlorodlfluoromethane (CHCIF2, R22) system were made by visual observation of the disappearance of the meniscus at the vapor-liquid Interface within an optical cell. Fifty-one saturated-vapor densities and thirty-seven saturated-liquid densities for seven different compositions of 0, 10, 20, 30, 50, 75, and 100 wt % R22 between 355 and 385 K (T, > 0.98) were obtained In the range of densities 280-892 kg/m3 (0.5 < p, < 1.5). The experimental error of temperature, density, and mass fraction was estimated within ±10 mK, ±0.5% and ±0.05 %, respectively. The composition dependence of the critical parameters Is analyzed and discussed on the basis of these measurements.

AB - Measurements of the vapor-liquid coexistence curve In the critical region for the binary dichlorodlfluoromethane (CCI2F2, R12) + chlorodlfluoromethane (CHCIF2, R22) system were made by visual observation of the disappearance of the meniscus at the vapor-liquid Interface within an optical cell. Fifty-one saturated-vapor densities and thirty-seven saturated-liquid densities for seven different compositions of 0, 10, 20, 30, 50, 75, and 100 wt % R22 between 355 and 385 K (T, > 0.98) were obtained In the range of densities 280-892 kg/m3 (0.5 < p, < 1.5). The experimental error of temperature, density, and mass fraction was estimated within ±10 mK, ±0.5% and ±0.05 %, respectively. The composition dependence of the critical parameters Is analyzed and discussed on the basis of these measurements.

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