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Propylene glycol

CAS57-55-6

MFC3H8O2

MW76.09

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  • Mass

    MS-NW-5528          
    1,2-propanediol
    C3H8O2              (Mass of molecular ion:     76)
    

       Source Temperature: 260 °C
       Sample Temperature: 190 °C
       Reservoir, 75 eV
    

          15.0       5.7
          18.0       2.0
          19.0       6.3
          26.0       1.6
          27.0      10.8
          28.0       3.4
          29.0       8.7
          31.0      11.5
          33.0       1.6
          39.0       1.4
          41.0       1.8
          42.0       1.7
          43.0      15.4
          44.0       5.7
          45.0     100.0
          46.0       2.6
          57.0       2.3
          58.0       1.7
          61.0       5.3
    

90 MHz in CDCl3

in CDCl3


  • 1H NMR 89.56 MHz
    C3 H8 O2 0.04 ml : 0.5 ml CDCl3
    1,2-propanediol
    ChemicalStructure
        Assign.     Shift(ppm)
    A 3.92 B 3.86 C *1 3.57 D *1 3.39 E 1.137 J(A,E)=6.4HZ. J(C,D)=-11.2HZ. J(A,C)=3.1HZ. J(A,D)=7.6HZ.

         Hz     ppm     Int.
    

        356.25   3.978     54
        355.88   3.974     52
        353.25   3.945     47
        352.00   3.931     30
        350.00   3.908     50
        348.63   3.893     70
        345.38   3.857   1000
        342.31   3.823     75
        340.75   3.805     32
        339.25   3.788     66
        329.50   3.680     46
        326.38   3.645     46
        318.25   3.554    147
        315.19   3.520    117
        309.88   3.461    221
        302.25   3.375    159
        298.63   3.335     76
        291.00   3.250     62
        105.00   1.173    934
         98.69   1.102    907
    



in CDCl3



liquid film



4880 A,200 M,liquid