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EC number: 295-518-9
CAS number: 92062-05-0
A complex combination of hydrocarbons obtained from the vacuum distillation of the products from a thermal cracking process. It consists predominantly of hydrocarbons having carbon numbers predominantly greater than C34 and boiling above approximately 495°C (923°F).
a primary eye irritation study, 0.1 mL of Vacuum Residuum was instilled
into the conjunctival sac of the right eye of 9 New Zealand White
Rabbits. Group II animals had the treated eyey flushed 30
seconds after compound instillation, while Group I animals remained
then were observed for 7 days. Irritation
was scored by the method of Draize, 1959.
eye irritation scores for the unwashed eyes at 1, 24, 48, and 72 hours
were 2.0, 4.0, 4.2, and 1.8, respectively. Primary eye irritation scores
for the washed eyes at 1, 24, 48, and 72 hours were 1.3, 5.3, 2.0, and
0.7, respectively. In
this study, Vacuum Residuum is considered not irritating to the rabbit
eye based on low primary eye irritation scores which were fully resolved
by day 7.
study received a Klimisch score of 1 and is classified as reliable
without restriction because it was conducted similar to guideline study
OECD TG 405.
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