Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Partitioning of substances into the different environmental compartments depends mainly on their physico-chemical properties. Since the water solubility of Tetrasodium ethylenediaminetetraacetate (EDTA-Na4; CAS 64-02-8) is high (~ 500 g/L) and the log Pow value low (< 1), the substance is expected to mainly distribute to the water phase. However, as EDTA-Na4 is inherently biodegradable fulfilling specific conditions (biodegradable under enhanced conditions), the substance will not be persistent in the environment.

EDTA-Na4 is not expected to evaporate into the atmosphere due to its low vapor pressure. If entering the atmosphere, EDTA-Na4 will be rapidly degraded by photochemical processes. Thus, long-range transport through the atmospheric compartment is not expected. Additionally, hydrolysis is not a relevant degradation pathway in the environment, since neither strong acids nor alkalis cause any degradation (according to EU Risk Assessment 2004). At exposures of 0.76 and 0.08 mg/L, 14C-EDTA exhibited extremely low 28d-whole fish bioconcentration factors of 1.1 - 1.8. After transfer to clean water, elimination showed 81% at 0.76 mg/l and 60% at 0.08 mg/L in 14 days. Thus, the test substance does not bioaccumulate in aquatixc organisms.