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EC number: 233-899-5 | CAS number: 10421-48-4
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Additional toxicological data
Administrative data
- Endpoint:
- additional toxicological information
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- supporting study
- Study period:
- published in 1974, no experimental dates provided
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Research paper study well documented meeting generally accepted scientific principles.
Data source
Reference
- Reference Type:
- publication
- Title:
- Food iron absorption in man. Applications of the two-pool extrinsic tag method to measure heme and nonheme iron absorption from the whole diet.
- Author:
- Bjorn-Rassmussen E, Hallberg L, Isaksson B et al.
- Year:
- 1 974
- Bibliographic source:
- J. Clin. Invest. 53: 247-255.
Materials and methods
Test guideline
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- The method is based on the concept that food iron is absorbed from two pools the haem iron and the non-haem iron pool which can be labelled by the use of two
radio iron isotopes given as haemoglobin (59 Fe-labelled rabbit haemoglobin in the diet) and as an iron salt (55 and 59 Fe labelled ferric chloride).
The men were fed the radiolabelled iron materials in the diet supplied as breakfast, lunch and dinner. - GLP compliance:
- no
Test material
- Reference substance name:
- Iron sulphate
- EC Number:
- 231-753-5
- EC Name:
- Iron sulphate
- Cas Number:
- 7720-78-7
- IUPAC Name:
- iron(2+) sulfate
- Test material form:
- other: haem and non-haem dietary iron
- Details on test material:
- Male subjects were fed the radiolabelled iron materials in the diet supplied as breakfast, lunch and dinner
Constituent 1
Results and discussion
Any other information on results incl. tables
The main findings from this study indicate that there was a greater absorption of haem iron (35%) than non-haem iron (5%) in these human
volunteers. There was a significant increase in iron absorption when the level of iron fortification of the meals was increased. The test method was
considered to acceptable for the measurement of total iron absorption from a mixed diet.
Applicant's summary and conclusion
- Conclusions:
- The main findings from this study indicate that there was a greater absorption of haem iron (35%) than non-haem iron (5%) in these human
volunteers. There was a significant increase in iron absorption when the level of iron fortification of the meals was increased. - Executive summary:
This study was undertaken to test the accuracy of the two pool intrinsic tag method to measure haem and non-haem iron in the whole diet.
32 young male volunteers were used to assess the accuracy of an isotope test method to measure iron absorption from the whole diet. The method is based on the concept that food iron is absorbed from two pools the haem iron and the non-haem iron pool which can be labelled by the use of two
radio iron isotopes given as haemoglobin (59 Fe-labelled rabbit haemoglobin in the diet) and as an iron salt (55 and 59 Fe labelled ferric chloride).
The men were fed the radiolabelled iron materials in the diet supplied as breakfast, lunch and dinner.
The main findings from this study indicate that there was a greater absorption of haem iron (35%) than non-haem iron (5%) in these human
volunteers. There was a significant increase in iron absorption when the level of iron fortification of the meals was increased.
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