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EC number: 265-191-7
CAS number: 64742-88-7
A complex combination of hydrocarbons obtained from the distillation of crude oil or natural gasoline. It consists predominantly of saturated hydrocarbons having carbon numbers predominantly in the range of C9 through C12 and boiling in the range of approximately 140°C to 220°C (284°F to 428°F).
In a key 72-hour
toxicity test (OECD 201; KS = 1), cultures of the freshwater plant Raphidocelis
subcapitata were exposed to solvent naphtha (petroleum), heavy
aromatic kerosine at nominal concentrations of 0, 0.1, 0.4, 1.0, 3.0,
and 10.0 mg/L under static conditions. The
72-hour NOEL and EL50 values based on most average specific growth rates
were 1.0 mg/L and 1 to 3 mg/L, respectively. The
% growth inhibition, based on average specific growth rate, in the
treated algal cultures as compared to the control ranged from 7.1 to
270%. Signs of
phytoxicity include a reduction in growth rate (Shell, 1994).
two reliable supporting algae toxicity studies (Selenastrum
capricornutum) for two different kerosines products (Exxon, 1995h,
1995i) tested using the WAF methodology and following OECD Guideline
201, the 96 -hour EL50 (loading rate resulting in 50% decrease in growth
of algae) varied between 5.0 to 6.2 mg/L (based on both area under the
growth curve and average specific growth rates). The NOEL for these
tests varied between 0.4 and 6.2 mg/L. In another reliable supporting
algae toxicity study (Raphidocelis subcapitata) for
hydrodesulfurised kerosine (Shell, 1995) was tested using WAF
methodology, the 72 -hour EL50 was 10 to 30 mg/L WAF (based on both area
under the growth curve and average specific growth rates). The NOEL was
10 mg/L. In another supporting algae toxicity study testing sweetened
kerosine (Exxon, 1995g), on Selenastrum capricornutum, the 72-hour
EL50 was determined to be 3.7 mg/L.
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