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EC number: 945-888-9
CAS number: -
In an acute oral toxicity study
conducted according to OECD 423, groups of fasted, 9 -10 weeks old,
female Wistar rats were given a single oral dose of Ytterbium
zirconium oxide (purity 15.85% Yb2O3, 82.36% ZrO2) in sterile
water at dosage of 2000 mg/kg bw and observed for 14 days. A single
oral dose of Ytterbium zirconium oxide was not associated
with any mortality and signs of toxicity. Based on the results, the
LD50 can be considered to be greater than 2000 mg/kg bw and thus, the
target substance has no obligatory labelling requirement for toxicity
and no classification is warranted according to the CLP regulation
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