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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Sediment toxicity

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Administrative data

Link to relevant study record(s)

Description of key information

A key study for LaCl3 was identified of which data could be read across to lanthanum acetate. Dietzmann (2010) reported a 28-d NOEC for development rate and emergence of the chironomid Chironomus riparius of >= 1320 mg La/kg sediment dw. This NOEC corresponds to a NOEC of >= 3003 mg/kg sediment dw when expressed as lanthanum acetate.

Key value for chemical safety assessment

Additional information

Only one study was identified as reliable (Klimisch 2 because read across from LaCl3). Dietzmann (2010) performed an OECD 218 study with the chironomid Chironomus riparius. Emergence and development rate remained unaffected up to the highest exposure concentration, yielding a 28-d NOEC of >= 1320 mg/kg sediment dw, based on lanthanum. This lanthanum concentration corresponds to a lanthanum acetate concentration of >= 3003 mg/kg sediment dw.