Registration Dossier
Registration Dossier
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EC number: 229-146-5 | CAS number: 6419-19-8
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study well documented, includes study protocol; meets generally accepted scientific principles, acceptable for assessment.
Data source
Referenceopen allclose all
- Reference Type:
- study report
- Title:
- Unnamed
- Reference Type:
- other company data
- Title:
- Unnamed
Materials and methods
- Model:
- other: other (measurement)
- Media:
- water - sediment
Test material
- Reference substance name:
- Nitrilotrimethylenetris(phosphonic acid)
- EC Number:
- 229-146-5
- EC Name:
- Nitrilotrimethylenetris(phosphonic acid)
- Cas Number:
- 6419-19-8
- Molecular formula:
- C3H12NO9P3
- IUPAC Name:
- nitrilotrimethylenetris(phosphonic acid)
- Details on test material:
- Dequest 2001 Lot No 9/1/79 Pilot Plant Run, radiolabelled
(supplier not stated) and unlabelled. Dequest 2001 = dry
(presumably anhydrous) substance
Constituent 1
Results and discussion
Any other information on results incl. tables
K(sediment-water) (Day 8): values are expressed in
litres/kilogram.
0.05 ppm: 1200 (soft water), 1600 (hard water)
0.10 ppm: 1500 (soft water), 1500 (hard water)
1.0 ppm: 1100 (soft water), 1400 (hard water)
5.0 ppm: 340 (soft water), 1000 (hard water)
The 5.0 ppm test concentration may not have reached
equilibrium over the test period due to saturation of some
of
the sediment adsorption sites. Therefore, a mean value
applicable to soft water is 1270 l/kg, and to hard water,
1500 l/kg.
The adsorption coefficient Koc has been obtained from the
mean of the above data and a value of Koc = 11740, log Koc =
4.07 applies; this is not part of the report.
Data for adsorption of ATMP to a variety of non-standard
substrates are available and reviewed (Annex III to the SIARs).
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
