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1、Designation:E1252?98(Reapproved2013)1StardPracticefGeneralTechniquesfObtainingInfraredSpectrafQualitativeAnalysis1ThisstardisissuedunderthefixeddesignationE1252thenumberimmediatelyfollowingthedesignationindicatestheyearo

2、figinaladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ε1NOTE—Warningstatementswereeditiallycrec

3、tedinJanuary2013.1.Scope1.1Thispracticecoversthespectralrangefrom4000to50cm?1includestechniquesthatareusefulfqualitativeanalysisofliquidsolidvapphasesamplesbyinfraredspectrometrictechniquesfwhichtheamountofsampleavailabl

4、efanalysisisnotalimitingfact.Thesetechniquesareoftenalsousefulfrecdingspectraatfrequencieshigherthan4000cm–1inthenearinfraredregion.1.2ThevaluesstatedinSIunitsaretoberegardedasstard.Nootherunitsofmeasurementareincludedin

5、thisstard.1.3Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitation

6、spritouse.Specificprecautionsaregivenin6.5.1.2.ReferencedDocuments2.1ASTMStards:2E131TerminologyRelatingtoMolecularSpectroscopyE168PracticesfGeneralTechniquesofInfraredQuantitativeAnalysisE334PracticefGeneralTechniquesof

7、InfraredMicroanalysisE573PracticesfInternalReflectionSpectroscopyE932PracticefDescribingMeasuringPerfmanceofDispersiveInfraredSpectrometersE1421PracticefDescribingMeasuringPerfmanceofFourierTransfmInfrared(FTMIR)Spectrom

8、eters:LevelZeroLevelOneTestsE1642PracticefGeneralTechniquesofGasChromatographyInfrared(GCIR)Analysis3.Terminology3.1Definitions—FdefinitionsoftermssymbolsrefertoTerminologyE131.4.SignificanceUse4.1Infraredspectroscopyist

9、hemostwidelyusedtechniquefidentifyingganicinganicmaterials.Thispracticedescribesmethodsftheproperapplicationofinfraredspectroscopy.5.General5.1Infrared(IR)qualitativeanalysisiscarriedoutbyfunctionalgroupidentification(13

10、)3bythecomparisonofIRabsptionspectraofunknownmaterialswiththoseofknownreferencematerialsboth.Thesespectraareobtained(48)throughtransmissionreflectionothertechniquessuchasphotoacousticspectroscopy(PAS).Spectrathataretobec

11、omparedshouldbeobtainedbythesametechniqueunderthesameconditions.Usersofpublishedreferencespectra(916)shouldbeawarethatnotallofthesespectraarefullyvalidated.5.1.1Instrumentationaccessiesfinfraredqualitativeanalysisarecomm

12、erciallyavailable.Themanufacturer’smanualshouldbefollowedtoensureoptimumperfmancesafety.5.2Transmissionspectraareobtainedbyplacingathinunifmlayerofthesampleperpendiculartotheinfraredradiationpath(see9.5.1fexceptionindert

13、oeliminateinterferencefringesfthinfilms).Thesamplethicknessmustbeadequatetocauseadecreaseintheradiantpowerreachingthedetectattheabsptionfrequenciesusedintheanalysis.Fbestresultstheabsbanceofthestrongestbsshouldbeintheran

14、gefrom1to2severalbsshouldhave1ThispracticeisunderthejurisdictionofASTMCommitteeE13onMolecularSpectroscopySeparationScienceisthedirectresponsibilityofSubcommitteeE13.03onInfraredNearInfraredSpectroscopy.Currenteditionappr

15、ovedJan.12013.PublishedJanuary2013.iginallyapprovedin1988.Lastpreviouseditionapprovedin2007asE1252–98(2007).DOI:10.1520E125298R13.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServiceat.FAnnualBoo

16、kofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Theboldfacenumbersinparenthesesrefertoalistofreferencesattheendofthisstard.Copyright?ASTMInternational100BarrHarbDrivePOBoxC700WestConshoh

17、ockenPA194282959.UnitedStates1TABLE1PropertiesofWindowMaterials(inderoflongwavelengthlimit)WindowMaterialChemicalCompositionCutoffRangeAUsefulTransmissionRangeWaterSolubilityRefractiveIndexat(m)Remarks(m)(cm?1)(m)(cm?1)G

18、lassSiO22.540000.35–228570–5000insoluble1.5–1.9HFalkaliBQuartz(fused)SiO23.528570.2–450000–2500insoluble1.434.5HFBSIliconNitrateSi3N40.3–4.533000–2200SiliconCarbideSiC0.6–516600–2000CalciteCaCO30.2–550000–20001.651.50.58

19、9CReactswithacidsSapphireAl2O35.518180.2–5.550000–1818insoluble1.770.55GoodstrengthnocleavageALON9AI2O3.5AIN0.2–5.550000–17001.80.6SpinelMgAI2O40.2–650000–16001.680.6StrontiumTitanateSrTiO30.39–625000–1700insoluble2.4HFB

20、TitaniumDioxideTiO20.42–624000–1700insoluble2.6–2.9H2SO4AlkaliBLithiumFluideLiF6.016670.2–750000–1429slightly1.391.39AcidBZirconiaZrO20.36–727000–1500insoluable2.15HFH2SO4BSiliconSi1.5–710–FIR6600–1430insoluble3.411.0Rea

21、ctswithHFalkaliDYttriaY20.25–840000–12501.90.6Yttria(Ladoped)0.09La2O30.91Y2O30.25–840000–12501.80.6IRTRANIEMgF22–85000–1250slightly1.36.7HNO3BMagnesiumOxideMgO0.4–825000–1300insoluble1.65AcidNH4saltsBFluiteCaF28.012500.

22、2–1050000–1000insoluble1.408.0AminesaltNH4saltsBStrontiumFluideSrF20.13–1177000–909slightly1.4IRTRANIIIECaF20.2–1150000–909insoluble1.345.0PolycrystallinenocleavageGalliumPhosphideGaPGaP0.5–1120000–910LeadFluidePbF20.3–1

23、23450–8331.71ServofraxFAs2S31–1210000–833insolubleslightly(hot)2.590.67AlkaliBsoftensat195CBariumFluideBaF2119090.2–1350000–769insoluble1.455.1AMTIRGeAsSeGlass0.9–1411000–725insoluble2.510HardbrittleattackedbyalkaligoodA

24、TRmaterialIRTRANIIEZnS1–1410000–714insoluble2.245.5InsolubleinmostsolventsIndiumPhosphideInP1–1410000–725PotassiumFlideKF0.16–1562500–666soluble1.30.3Extremelydeliquescent:notrecommendedfroutineuseRocksaltNaCl166250.2–16

25、50000–625soluble1.524.7SolubleinglycerineGCadmiumSulfideCdS0.5–1620000–625ArsenicTriselenideAs2Se30.8–1712500–600slightly2.8SolubleinbasesGalliumArsenideGaAs1–1710000–600insoluble3.14SlightlysoluableinacidsbasesGermanium

26、Ge2–205000–500insoluble4.013.0SylviteKCl0.3–2133333–476soluble1.490.5SolubleinglycerineGIRTRANIVEZnSe1–2110000–476insoluble2.51.0PolycrystallineSodiumBroeNaBr0.2–2350000–435soluble1.70.35SodiumIodideNaI0.25–2540000–400so

27、luble1.70.5SilverChlideAgCl224550.6–25166667–400insoluble2.03.8SoftdarkensinlightHreactswithmetalsPotassiumBroeKBr254000.2–2750000–370soluble1.538.6SolubleinalcoholfogsCadmiumTellurideCdTe283600.5–2820000–360insoluble2.6

28、710AcidsHNO3BThalliumChlideTICI0.4–3025000–330slightly2.20.75ToxicKRS6Tl2CIBr0.4–3225000–310slightly2.0–2.30.6–24ToxicSilverBroeAgBr352862–355000–286insolubleSoftdarkensinlightHreactswithmetalsKRS5Tl2Brl402500.7–3814286–

29、263slightly2.384.0ToxicsoftsolubleinalcoholHNO3BCesiumBroeCsBr352860.3–4033333–250soluble1.668.0SoftfogssolublealcoholsPotassiumIodideKl0.15–4566600–220ThalliumBroeTIBr0.45–4522000–220slightly2.30.6–25ToxicCesiumIodideCs

30、I521920.3–5033330–220soluble1.748.0Lowdensitypolyethylene(CH2CH2)n20–220500–45insoluble1.52VerysoftganicliquidsperateintopolymeratambienttemperatureType61I(CH2CH2)n2–2205000–45insoluble1.52Softensat90CType62I(CF2CF2)nJ2–

31、2205000–45insoluble1.52Usefulto200CfshtdurationsDiamondJ2445002500insoluble2.410K2Cr2O7H2SO4B6300166733ACutoffrangeisdefinedasthefrequencyrangewithinwhichthetransmittanceofa2cmthicksampleisgreaterthan0.5.FTIRspectrometer

32、smaybeabletowkoutsidethisrange.BReactswith.Cdinaryextradinaryrays.DLongwavelengthlimitdependsonpurity.ETrademarkofEastmanKodakCo.FTrademarkofServoCpofAmerica.GWindowmaterialwillreactwithsomeinganics(fexampleSO2HNO3Pb(NO3

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