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EC number: 265-182-8
CAS number: 64742-79-6
A complex combination of hydrocarbons obtained from a petroleum stock by treating with hydrogen to convert organic sulfur to hydrogen sulfide which is removed. It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C13 through C25 and boiling in the range of approximately 230°C to 400°C (446°F to 752°F).
Table 1 Mortality
an acute inhalation toxicity, male and female Sprague Dawley rats
(5/sex/dose) were exposed via whole-body exposure to test material
hydrodesulphurised middle distillate at measured concentrations of 0,
3.6, 3.5, 4.0, 6.9, or 7.3 mg/L for 4 hours. The
study consisted of two phases; the preliminary phase consisted of 5
males and 5 females exposed to measured concentrations of 3.6 mg/L for 4
mortality rate for this study was 60%. Four additional test levels were
selected for the main study. Animals
were observed for 14 days post-exposure followed by a gross macroscopic
examination, with microscopic examination of selected tissues including
the trachea and lungs. The equivalent aerodynamic diameter ranged from
3.1 to 4.1 µL
the geometric standard deviation ranged from 1.84 to 1.96.
were no deaths during the 4hr exposure period, and macroscopic and
microscopic findings were limited to the lungs, where moderate to severe
pulmonary irritation was apparent. Clinical signs commonly included
dyspnea and discharge from the nose and eyes. The
LC50 for both males and females was determined to be 4.6 mg/L.
study is classified as a Klimisch score of 2, reliable with
restrictions, because it is an acceptable and well-documented study
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