Physical properties

such as dynamic viscosity

saturated vapor pressure

specific heat capacity

dissolution enthalpy

enthalpy of vaporization and standard gaseous enthalpy of formation for oxyfluorfen and its synthetic intermediates

were determined or calculated. The intermediates include 4 - chlorobenzotriflouride

3

4- dichlorobenzotriflouride

1

3 - bis ( 2 - chloro - 4 - trifluomethyl phenoxy) benzene and 2

4 - bis(2 - chloro - 4 - trifluomethyl phenoxy) nitrobenzene. Tne quantum mechanics molecular models (AMI) and the application of group contribution method based on molecular structure were verified. The results have not been reported in the literature

and could provide chemical engineering design with fundamental data.