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EC number: 202-049-5
CAS number: 91-20-3
Several batch adsorption
experiments with naphthalene have been carried out. The determined
organic carbon-water partition coefficients ranged from 378 to 664. In
the course of the adsorption experiments, it has been revealed that
naphthalene adsorbs to the soil material to a moderate extent, reaching
equilibrium state within a period of one day. In contrast, desorption
experiments showed that only 30-50 % of adsorbed naphthalene could be
The desorption experiments
clearly highlighted the strongly dependence of the adsorption rate on
the level of the soil contamination: adsorption to soils, contaminated
with unleaded gasoline was found to be significantly higher on a soil
contaminated with residual hydrocarbons than on a pristine soil. These
findings indicate that naphthalene adsorption to residual hydrocarbons
was greater than to natural soil organic carbon.
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