Binary azeotropic compositions of 1,1-dichloro-1-fluoroethane and n-perfluorobutylethylene
AssigneeE. I. Du Pont de Nemours and Company
InventorAbid N. Merchant
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Abstract
The azeotropic mixture of 1,1-dichloro-1-fluoroethane and n-perfluorobutylethylene is disclosed. The azeotropic mixture is useful as: a cleaning agent, a blowing agent, a refrigerant, an aerosol propellant, a fire extinguishing agent, a heat transfer medium and a power cycle working fluid.
Claims8
An azeotropic composition wherein the composition consists essentially of about 94.0-99.0 weight percent 1,1-dichloro-1-fluoroethane and about 1.0-6.0 weight percent n-perfluorobutylethylene wherein the composition has a boiling point of about 31.2.degree. C. when the pressure is adjusted to substantially atmospheric pressure.
Dependencies are inferred from the claim text.