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EC number: 209-790-3 | CAS number: 593-45-3
The phototransformation rate for is in the range 12.59 - 42.13 x 10-12 cm3/molecule/sec.The calculated half-lives are in the range 0.254 - 0.850 d (3.047 -10.195 hrs).
Icosane half-life in air is 0.424 days. Therefore icosane is to be considered as not persistent in the atmospheric compartment (DT50 less than 2 days).
Hydrocarbons, C14 -C20, aliphatics, ≤2% aromatics are UVCBs. Therefore, the phototransformation in air was estimated from the AOPWIN v1.92 calculations of phototransformation of selected hydrocarbons likely to be constituents of Hydrocarbons, C14 -C20, aliphatics, ≤2% aromatics. The single representative hydrocarbons were selected among allt he classes and the whole carbon range of the category.
The phototransformation rate is in the range 12.59 - 42.13 x 10-12 cm3/molecule/sec. The calculated half-lives are in the range 0.254 - 0.850 d (3.047 -10.195 hrs). These values are largely below the trigger limit (2 days). Therefore, Hydrocarbons, C14-C20, aliphatics, ≤2% aromatics are not persistent.
The phototransformation rate for icosane is 25.24 x 10-12 cm3/molecule/sec.The calculated half-life is 0.424 d (5.085 hrs). This value is largely below the trigger limit (2 days). Therefore, icosane is not persistent.
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