Azeotropic mixture of hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane
AssigneeDaikin Industries, Ltd.
InventorsTakehide Tsuda, Nobuyoshi Iwashita, Satoshi Komatsu, Satoshi Koyama
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Abstract
Hydrogen fluoride and 1,1,1-trifluoro-2-chloroethane forms an azeotropic mixture of which molar ratio of HF/1,1,1-trifluoro-2-chloroethane varies, for example, from about 60/40 at a pressure of 1.5 Kg/cm.sup.2 G and a temperature of 20.degree. C. to about 45/55 at a pressure of 15 Kg/cm.sup.2 G and a temperature of 87.degree.C.
Claims7
An azeotropic mixture consisting essentially of 1,1,1-trifluoro-2-chloroethane and hydrogen fluoride, wherein the molar ratio of HF/1,1,1-trifluoro-2-chloroethane varies from 65/35 at atmospheric pressure and a temperature of -2.degree. C., to about 45/55 at a pressure of 15 K/cm.sup.2 G and a temperature of 87.degree. C.
Dependencies are inferred from the claim text.