Registration Dossier
Registration Dossier
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EC number: 265-996-3 | CAS number: 65996-65-8 The product of agglomerating iron ore fines, concentrates, iron sinter, and other iron-bearing materials. Includes pellets, nodules and briquettes.
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption
- Remarks:
- other: Kd
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- weight of evidence
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The partition coefficient for Iron reported in this study is based on a literature survey. Hypothesis for read across: The structure of iron ore pellets consists essentially of iron oxide grains. The bonding of the grains occur by oxide bridging, recrystallisation of hematite and to a lesser extent by the formation of fused silicate phases. Since silicates are inert and no effect on the environment is expected, the endpoints in Chapters 5 and 6 are based on the effects of iron as a worst case in these substances. More information on the justification of read across can be found in the attached document in the endpoint summaries of section 5 and 6.
Cross-reference
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- publication
- Title:
- Can the unit world model concept be applied to hazard assessment of both organic chemicals and metal ions?
- Author:
- Harvey C, Mackay, D, Webster E
- Year:
- 2 007
- Bibliographic source:
- Environmental Toxicology and Chemistry, Vol 26(10), pp 2129-2142
Materials and methods
- Principles of method if other than guideline:
- secondary source, not sure if guideline is used
- GLP compliance:
- not specified
- Type of method:
- other: no data
- Media:
- soil
Test material
- Reference substance name:
- Iron
- EC Number:
- 231-096-4
- EC Name:
- Iron
- Cas Number:
- 7439-89-6
- Molecular formula:
- Fe
- IUPAC Name:
- iron(2+)
- Details on test material:
- Iron
Constituent 1
Study design
- Test temperature:
- no data
HPLC method
- Details on study design: HPLC method:
- no data
Batch equilibrium or other method
- Analytical monitoring:
- not specified
- Details on sampling:
- no data
- Details on matrix:
- no data
- Details on test conditions:
- no data
Results and discussion
Adsorption coefficient
- Type:
- Kd
- Remarks:
- log for soil
- Value:
- ca. 2.7
- Remarks on result:
- other: mean log Kd is 2.736
Any other information on results incl. tables
Mean log Kd of 2.736 is derived from AECL report1990 with log Kd of 2.519; 3.079; 2.394; 2.954 for respectively sand; silt; clay and organic soils.
Applicant's summary and conclusion
- Conclusions:
- Mean log Kd for soil is 2.736.
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