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EC number: 237-136-7 | CAS number: 13653-62-8
The maximum attainable concentration of the Trigonox D-B 50 (ca 50% di-tert-butyl sec-butylidene diperoxidea in dibutyl phtalate) aerosol in the test atmosphere turned out to be 2.42 mg/L air. Droplet size determinations in impaction samples revealed a maximum droplet diameter of 6.7 µm. Ninety per cent of the mist consisted o.f droplets with a diameter of 1.2-3.3 µm. No information on the behaviour of the rats during the exposure is available, because the animals were completely invisible as a consequence of the dense mist prevailing in the inhalation chamber. No mortality occurred during the 4-hour exposure period and the subsequent observation period of 14 days. The males and females gained weight in a normal way during the 14-day observation period.
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