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EC number: 208-901-2
CAS number: 546-46-3
OECD 301B (CO2 evolution test): 97% in 28 days, OECD 301E (Modified OECD screening test): 100% in 19 days, OECD 302B (inherent biodegradability: Zahn-Wellens test) 85% in 14 days
The effect of trizinc dicitrate when in solution is not expected to
differ significantly from the effects of the citrate anion (H7C6O7-)
and the metal ion separately, so exposure will be to citric acid and
the metal ions separately. Therefore the ready biodegradation of
Trizinc dicitrate is assessed based on available read across data from
citric acid and zinc. However, the ready biodegradability of the metal
ion does not need to be determined in accordance with Column 2 of
REACH Annex VII, since it is inorganic. The available data on citric
acid is thus sufficient to fulfil the information requirements for
Trizinc dicitrate is also found to be readily biodegradable by
bacteria from available supporting study after a lag time of 20 hours.
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