Azeotrope-like compositions of heptafluoropropane and trifluoroiodomethane

Abstract

Provided are azeotrope-like compositions comprising heptafluoropropane and trifluoroiodomethane and uses thereof, including use in refrigerant compositions, refrigeration systems, blowing agents, fire suppressant compositions, and aerosol propellants.

1 . A fire suppression system comprising a fire suppressant, wherein said fire suppressant comprises a composition consisting essentially of effective amounts of HFC-227ea and CF 3 I. 
     
     
         2 . The fire suppression system of  claim 1  wherein said fire suppressant consists essentially of an azeotrope-like composition of from greater than zero to about 70 weight percent HFC-227ea and from about 30 to less than 100 weight percent of CF 3 I. 
     
     
         3 . The fire suppression system of  claim 1  wherein said azeotrope-like composition consists essentially of from greater than about 25 to about 40 weight percent HFC-227ea and from about 60 to about 75 weight percent of CF 3 I. 
     
     
         4 . The fire suppression system of  claim 1  further comprising one or more orifices fluidly connected to said suppressant and disposed to flood an enclosed space with said suppressant. 
     
     
         5 . The fire suppression system of  claim 1  further comprising a conduit fluidly connected to said suppressant. 
     
     
         6 . The fire suppression system of  claim 5  wherein said conduit is a flexible hose. 
     
     
         7 . The fire suppression system of  claim 5  wherein said conduit is rotatable and/or pivotal. 
     
     
         8 . The composition of  claim 1 , further comprising an additive selected from the group consisting of lubricants, stabilizers, metal passivators, corrosion inhibitors, and flammability suppressants.