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EC number: 231-150-7 | CAS number: 7440-41-7
Table 1 Mortality
Table 2 Bodyweight
Two groups of female rats (2 x 3 animals) were administered a dose of 2000 mg/kg bodyweight of beryllium metal powder in polyethylene glycol 300. The animals were examined during the first 30 minutes after administration and then at 1, 2, 3, 5 hours. From day 2 -15 the animals were observed twice daily. Bodyweight was recorded at the day of the study (before administration) and then on day 8 and 15. The animals were then subject to necropsy at the end of the study.
No mortality was observed. There were no clinical signs reported and bodyweight was within the range of what is normal for this strain and age. Necropsy did not reveal any significant findings. The LD50 of beryllium metal powder is > 2000 mg/kg bodyweight.
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