Registration Dossier
Registration Dossier
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EC number: 243-136-8 | CAS number: 19529-38-5
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Study period:
- 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study well documented, meets generally accepted scientific procedures, acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Distribution and Transportation of Ethylenediaminetetraacetic acid and Diethylenetriaminepentaacetic acid in lake water and sediment
- Author:
- Sillanpaa et al
- Year:
- 1 997
- Bibliographic source:
- Chemosphere 35 (12), 2797-2806
Materials and methods
- Principles of method if other than guideline:
- The concentrations of EDTA and DTPA were measured by gas chromatography in Finnish lake waters and sediments influenced by pulp and paper industry.
- GLP compliance:
- no
- Type of study:
- other:
- Media:
- other:
Test material
- Reference substance name:
- N-carboxymethyliminobis(ethylenenitrilo)tetra(acetic acid)
- EC Number:
- 200-652-8
- EC Name:
- N-carboxymethyliminobis(ethylenenitrilo)tetra(acetic acid)
- Cas Number:
- 67-43-6
- Molecular formula:
- C14H23N3O10
- IUPAC Name:
- 2-[bis[2-(bis(carboxymethyl)amino)ethyl]amino]acetic acid
- Details on test material:
- - Name of test material (as cited in study report): EDTA and DTPA
Constituent 1
Results and discussion
Any other information on results incl. tables
Concentrations of EDTA in lake water ranged from <1.0 to 11.4 µg/1. Elevated concentrations of EDTA were observed downstream of the mills. The decline in the use of EDTA in total-chlorine-free (TCF) processes is clearly shown by decreased waste water and lake water concentrations of EDTA. Sediment concentrations of EDTA varied between 80 and 310 µg/kg.
In contrast to EDTA, DTPA was not found in lake waters and sediments
Applicant's summary and conclusion
- Conclusions:
- Concentrations of EDTA in lake water ranged from <1.0 to 11.4 µg/1. Elevated concentrations of EDTA were observed downstream of the mills. The decline in the use of EDTA in total-chlorine-free (TCF) processes is clearly shown by decreased waste water and lake water concentrations of EDTA. Sediment concentrations of EDTA varied between 80 and 310 µg/kg.
In contrast to EDTA, DTPA was not found in lake waters and sediments
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