Acetylenedicarboxylic acid(142-45-0) IR2

Mass

MS-NW-5043          
acetylenedicarboxylic acid
C4H2O4              (Mass of molecular ion:    114)

   Source Temperature: 170 °C
   Sample Temperature: 100 °C
   Direct, 75 eV

      12.0       2.8
      13.0       1.8
      14.0       1.7
      16.0       3.9
      17.0       1.1
      18.0       1.7
      22.0       1.2
      24.0       7.0
      25.0      13.8
      26.0      15.4
      27.0       1.2
      28.0       9.6
      29.0       4.0
      36.0       1.3
      40.0       2.8
      41.0       4.8
      42.0      14.0
      43.0       1.1
      44.0      93.8
      45.0      16.9
      52.0      12.9
      53.0     100.0
      54.0       3.6
      68.0       3.1
      69.0       6.8
      70.0      61.2
      71.0       2.7
      80.0       2.9
      86.0       8.2
      97.0      23.8
      98.0       2.4
     114.0      15.8