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SYSTEM                                  TEMP(degree)
I-pentane/N2                          -160
1,5-hexadiene/N2                    -141
n-pentane /N2                        -131
methyl cyclohexane                  -126
acetaldehyde/N2                      -124
ethyl bromide/N2                     -119
butyl bromide /N2                    -112
cyclohexane/N2                       -104
diethyl ether/CO2                    -100
nitroethane/N2                        -90
acrylonitrile/N2                         -82
ethanol/N2                              -72
chloroform /CO2                       -61
n-butyl amine/N2                      -50
acetonitrile/N2                          -41
bromobenzene/N2                    -30
m-dichlorobenzene/N2               -25
tetrachloroethane/N2                -22
ethylene glycol/CO2                  -15


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