制冷剂407C和410A的MSDS

DuPont™Suva®407C(R-407C)andDuPont™Suva®410A(R-410A)Properties,Uses,Storage,andHandlingP407C/410ATechnicalInformationPageIntroduction.........................................1Background..................................................1Suva407CandSuva410ARefrigerantDescriptions...............1Uses................................................2PhysicalProperties....................................2Chemical/ThermalStability............................8StabilitywithMetals...........................................8ThermalDecomposition........................................9CompatibilityConcernsIfHCFC-22andSuvaRefrigerantsAreMixed.......................................9MaterialsCompatibility................................9Elastomers...................................................9Plastics......................................................9Desiccants..................................................12RefrigerationLubricants..............................12Safety.............................................12InhalationToxicity............................................12CardiacSensitization........................................13SkinandEyeContact..........................................14SpillsorLeaks...............................................14Nonflammability.............................................14CombustibilityofSuva407CandSuva410A....................14AirMonitorsandLeakDetection........................15TypesofDetectors...........................................15NonselectiveDetectors......................................15Halogen-SelectiveDetectors..................................15Compound-SpecificDetectors................................15FluorescentAdditives.......................................15StorageandHandling................................16ShippingContainersintheU.S.................................17BulkStorageSystems.........................................17ConvertingBulkStorageTanksfromHCFC-22toSuva407CorSuva410A.................................17MaterialCompatibilityConcerns..............................17HandlingPrecautionsforSuva407CandSuva410AShippingContainers........................................17Recovery,Reclamation,Recycle,andDisposal............18Recovery....................................................18Reclamation.................................................18Recycle.....................................................18Disposal....................................................18TableofContentsDuPont™Suva407C(R-407C)andDuPont™Suva410A(R-410A)Properties,Uses,Storage,andHandlingIntroductionBackgroundChlorodifluoromethane(R-22orHCFC-22)hasbeenusedasarefrigerantinvariousrefrigeration,indus-trialcooling,airconditioning,andheatingapplica-tionsforoverfivedecades.ThelowozonedepletionpotentialofR-22comparedtoCFC-11(chloro-fluorocarbon11)andCFC-12anditsexcellentrefrigerantpropertieshavehelpedfacilitatethetransitionawayfromCFCs.However,R-22willbephasedoutinthefirstquarterofthe21stcentury.Inpreparationforthisphaseout,DuPontoffersDuPont™Suva®407CandDuPont™Suva®410A,environmentallyacceptablealternativestoR-22.Suva407CandSuva410ARefrigerantDescriptionsSuva®407Cisanon-ozone-depletingblendofthreehydrofluorocarbon(HFC)refrigerants.ItexhibitsperformancecharacteristicssimilartoR-22.Suva®410Aisanon-ozone-depletingblendoftwoHFCrefrigerants.Itexhibitshigherpressuresandrefrigera-tioncapacitythanR-22.ThecompositionsofSuva®407CandSuva®410Aareasfollows:HFC-32HFC-125HFC-134aSuva407C(R-407C),wt%232552Suva410A(R-410A),wt%5050—BecauseSuva®407CandSuva®410AaremixturesofHFCs,theyhavezeroozonedepletionpotential.Table1liststhechemicalnamesandformulaeofthecomponentsthatmakeupSuva®407CandSuva®410A.Table1ComponentsofDuPont™Suva407C:HFC-32/HFC-125/HFC-134aandDuPont™Suva410A:HFC-32/HFC-125ComponentChemicalNameFormulaCASNumberMolecularWeightHFC-32DifluoromethaneCF2H275-10-552.0HFC-125PentafluoroethaneCF3CHF2354-33-6120.0HFC-134a1,1,1,2-TetrafluoroethaneCF3CH2F811-97-2102.01TheDuPontOvalLogo,DuPont™,Themiraclesofscience®,andSuva®aretrademarksorregisteredtrademarksofE.I.duPontdeNemoursandCompany.UsesSuva®407CrefrigerantperformssimilarlytoHCFC-22underevaporatortemperaturesrangingfrom–7to10°C(20to50°F).ItisdesignedforuseinnewequipmentandasaservicerefrigerantforexistingHCFC-22airconditioning,heatpumpandmedium-temperaturerefrigerationequipment.Suva®410Aisintendedforuseinnewaircondition-ingapplicationsthathavetraditionallybeenservicedbyHCFC-22.Manyotherapplicationsarealsopossiblesuchasmediumandlowtemperaturerefrig-eration.DuetothesignificantlyhigherpressuresthatSuva®410AexhibitscomparedtoHCFC-22,atypicalcompressordesignedforHCFC-22cannotbeusedwithSuva®410A.Table2showstheoreticalperformanceofSuva®407C,Suva®410A,andHCFC-22.Suva®407CexhibitssimilarperformancetoHCFC-22,whileSuva®410Agivessignificantlyhigherpressuresandrefrigerationcapacity.PhysicalPropertiesGeneralphysicalpropertiesforSuva®407CandSuva®410AareshowninTable3.Thepressure-enthalpydiagramsforSuva®407CareshowninFigures1and2