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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
partition coefficient
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: study conducted to OECD method with GLP, but used an estimation method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.8 (Partition Coefficient)
Principles of method if other than guideline:
Estimation of the partition coefficient was carried out by the visual solubilities in n-octanol and water method, Method A8 of Commission Directive 92/69/EEC (which constitutes Annex V of council directive 67/548/EEC).
GLP compliance:
yes (incl. QA statement)
Type of method:
other:
Partition coefficient type:
octanol-water

Test material

Constituent 1
Details on test material:
- Name of test material (as cited in study report): Hydroxyphosponoaceic acid, trisodium salt (TK13061/2)
- Physical state: Solid (white powder)
- Lot/batch No.: LIC 613/04
- Storage condition of test material: Room temperature in the dark

Results and discussion

Partition coefficientopen allclose all
Type:
log Pow
Partition coefficient:
< -5.65
Temp.:
20 °C
pH:
9.5
Type:
Pow
Partition coefficient:
< 0
Temp.:
20 °C
pH:
9.5

Applicant's summary and conclusion

Conclusions:
The partition coefficient of Trisodium [carboxy(oxido)methyl]phosphonate has been estimated to be less than 2.25E-6, Log Pow <-5.65.