Registration Dossier
Registration Dossier
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EC number: 209-167-6 | CAS number: 557-28-8
Additional information on environmental fate and behaviour
Administrative data
- Endpoint:
- additional information on environmental fate and behaviour
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Results were considered relevant for the EU environment in the EU risk assesment on zinc (ECB 2008)
Data source
Reference
- Reference Type:
- publication
- Title:
- Correlation of freundlich Kd and n retention parameters with soils and elements.
- Author:
- Buchter B, Davidaff B, Amacher C, Hinz C, Iskandar K and Selim HM.
- Year:
- 1 989
- Bibliographic source:
- Soil Science 148,:370-379
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Retention of the elements was studied using a batch equilibration method. Samples of soil were mixed with solution, shaken, filetered and amounts of each element retained by the spoil were calculated.
- GLP compliance:
- no
Test material
- Reference substance name:
- Zinc nitrate
- EC Number:
- 231-943-8
- EC Name:
- Zinc nitrate
- Cas Number:
- 7779-88-6
- Molecular formula:
- HNO3.1/2Zn
- IUPAC Name:
- zinc dinitrate
- Details on test material:
- Soluble Zn(NO3)2.6H20 was added to the soils.Test results are expressed as "zinc"
Constituent 1
Results and discussion
Any other information on results incl. tables
Solids-water partitioning coefficient of 158.5 l/kg (log value 2.2).
This value was determined. this value was used in the RA Zinc because it is based on the part of the metals that can actually exchange and is to be assumed in equilibrium with the water phase.Furthermore, experimental values were considered more reliable than field-based , in the RA.
Applicant's summary and conclusion
- Conclusions:
- Tests of good quality and considered useful for assessing the effect on the endpoint. Result used in the RA zinc (ECB 2008)
- Executive summary:
A solids-water partitioning coefficient of 2.2 (log value) was determined experimentally on 11 American soils. This value was used in the RA Zinc because it is based on the part of the metals that can actually exchange and is to be assumed in equilibrium with the water phase.Furthermore, experimental values were considered more reliable than field-based, in the RA.
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