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EC number: 310-202-3 | CAS number: 37206-42-1
- 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
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Decomposition:
- yes
- Decomp. temp.:
- > 423.08 °C
- Remarks on result:
- not determinable
- Remarks:
- Material decomposed before reaching boiling point, no boiling point could be determined.
- Conclusions:
- The DSC trace shows that there is an exothermic event in the temperature region 423.08°C, the atypical broad nature of the endotherm and residue in the crucible obtained during testing, leads to the conclusion that the sample undergoes an endothermic decomposition before boiling.
- Executive summary:
The boiling point of 1,1"-isopropylidenebis(ethylferrocene) was investigated using the DSC method, in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A2 and OECD Test Guideline 103. This study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).
The boiling point of 1,1"-isopropylidenebis(ethylferrocene) could not be determined as decomposition of material occurs before boiling.
The DSC trace shows that there is an exothermic event in the temperature region 423.08°C, the atypical broad nature of the endotherm and residue in the crucible obtained during testing, leads to the conclusion that the sample undergoes an endothermic decomposition before boiling.
Reference
SIWOLOBOFF METHOD)
No boiling point observed up to the upper temperature limit (250°C) of the Siwoloboff apparatus. Consequently a DSC run was performed due to the greater temperature range.
Siwoloboff method test results:
Run Number |
Mass of sample Used (g) |
Boiling Temperature (°C) |
1 |
0.22 |
N/A |
2 |
N/A |
N/A |
DSC METHOD
Screening Test (Aluminium DSC crucible):1,1"-isopropylidenebis(ethylferrocene) sample was charged to an open aluminium DSC crucible which was then placed in the furnace. The sample was then ramped from 0°C to 500°C at 10 K.min-1.
Table of results (Screening Test Aluminium DSC Crucible):
|
Endotherm onset temp. (°C) |
Screening Test |
423.08 |
On completion of testing a thin layer of sample residue remained at the bottom of the pan, decomposition was suspected. A second run in a sealed gold pan was carried out to determine if the broad endotherm was due to boiling or decomposition.
Screening Test (Gold DSC crucible):1,1"-isopropylidenebis(ethylferrocene) sample was charged to a gold (high pressure) DSC crucible which was then sealed and placed in the furnace. The sample was then ramped from 350°C to 500°C at 10 K.min-1.
The DSC trace shows that there is an exothermic event in a similar temperature region to that obtained using the aluminium crucible. This fact along with the atypical broad nature of the endotherm and residual sample in the pan obtained, leads to the conclusion that the sample undergoes an endothermic decomposition before boiling.
Description of key information
The boiling point of 1,1"-isopropylidenebis(ethylferrocene) was investigated using the Siwoloboff method and differential scanning calorimetry in a study in accordance with the procedure described in EU Regulation (EC) 440/2008, Annex Part A test A1 and OECD Test Guideline 102. This study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).
The DSC trace shows that there is an exothermic event in the temperature region 423.08°C, the atypical broad nature of the endotherm and residue in the crucible obtained during testing, leads to the conclusion that the sample undergoes an endothermic decomposition before boiling.
Key value for chemical safety assessment
Additional information
Due to the decomposition of 1,1"-isopropylidenebis(ethylferrocene) before boiling, it is not possible to determine a boiling point. Onset of decomposition is at approximately 423 °C.
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