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1、J.Chem.Eng.Data1081,26,11-1311withtheirresults.MyersandFenske(5)reportedthesmoothedAcknowledgmentdatafor1-methylnaphthalenebetween325.45and516.15K.TheirvaluesatlowerrangesofinvestigatedtemperatureareWeacknowledgetheleaveofabsencegrantedbytheIn-slightlysmallerthanbothoursandthedataofCaminandstitu
2、teofPhysicalChemistryofthePollshAcademyofScCRossini(2).Smootheddataofvaporpressuresofl-methyl-ences.PersonalacknowledgmentstoMr.R.J.Martinforex-naphthalenereportedbyGlaserandRuland(6)atthetem-tensiveassistancewiththeexperlmentalapparatusaredue.peraturerangebetween515.15and778.15KareinseriousTheT
3、herminol88usedasabathfluidforsomeoftheexper-disagreementwithourresults,theirdatabeingratherhigherimentswasprovkledbytheMonsantoChemicalCo.thanours.InFigure3,comparisonofvapor-pressuredatafor2-LiteratureCitedmethylnaphthaleneareshown.Similarly,for2-methyl-naphthalene,goodagreementwiththedataofCam
4、inand(1)Wleczorek,S.A.;Kobayashi,R.J.Cham.Eng.De&1980,25,302.Rossini(2)attemperaturerangesbetween412.34and514.81(2)Camln,D.L;Rossinl,F.D.J.Fhys.Chem.1955,58,1173.Kisevident,whileseriousdiscrepancieswithsmootheddata(3)&sgow,A.R.;Streiff,A.J.;Rosrrinl,F.D.J.Res.Net/.Bur.Stand(U.S.)1945,35,355.ofGl
5、aserandRuland(6)between515.15and735.15Kare(4)Nasir,P.;Hwang,S.C.;Kobayashl,R.J.Chem.€ng.&ta1980,25,noted.298.(5)Myers,H.S.;Fenske,M.R.Ind.Eng.Chem.1955,47,1652.For9,lodihydrophenanthrene,onlythedataofLee-Bechtold(6)olaser,F.;Ruiand,H.Chem.-Ing.-Tech.1957,29,772.etal.(7)areavailable,coveringthete
6、mperaturerangefrom(7)Lee-Bechtold,S.H.;Horsenloop,I.A.;Scott,D.W.;Osborn,A.0.;353.15to418.15Kwhichdoesnotoverlapours.InFigure4Good,W.D.J.Chem.Thenodyn.1979,11,469.ourdatafromhighertemperaturesareshown.AnextrapolatedlinefromourdatatolowertemperaturesappearstomergewithRecehredforreviewJune30,1980.
7、AcceptedOctober17,1980.TheElec-thelinethroughtheirdata.tricPowerResearchInstituteprovidedfinancialsupportfortMsInvestlgatlon.HeatsofVaporizationofFivePolynuclearAromaticCompoundsatElevatedTemperaturesStefanA.WleczorekandRiki