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EC number: 265-062-5
CAS number: 64741-60-2
A complex combination of hydrocarbons produced by the distillation of products from a catalytic cracking process. It consists of hydrocarbons having carbon numbers predominantly in the range of C11 through C30 and boiling in the range of approximately 205°C to 450°C (401°F to 842°F). It contains a relatively large proportion of tricyclic aromatic hydrocarbons.
toxicity was estimated using the PETROTOX computer model, which combines
a partitioning model (used to calculate the aqueous concentration of
hydrocarbon components as a function of substance loading) with the
Target Lipid Model (used to calculate acute and chronic toxicity of
non-polar narcotic chemicals). PETROTOX computes toxicity based on the
summation of the aqueous-phase concentrations of hydrocarbon block(s)
that represent a petroleum substance and membrane-water partition
coefficients (KMW) that describe the partitioning of the
hydrocarbons between the water and organism. The estimated freshwater
fish NOEL (No Observed Effect Level) value is 0.029 mg/l based on
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