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EC number: 244-079-1 | CAS number: 20845-92-5
- 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Expiration date of the lot/batch: March 31, 2018
- Purity test date: Inspection certificate dated September 22, 2017
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature (10 °C to 30 °C), dry
FORM OF THE TEST ITEM
- Purity: 2.07% rhodium
- Form: Liquid
- Appearance: Brownish liquid
- Solvent: 2-ethylhexan-1-ol - Boiling pt.:
- 183.9 °C
- Atm. press.:
- 1 013.3 hPa
- Remarks on result:
- other: The boiling was incomplete (mass loss: 96 %).
- Conclusions:
- The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 183.9 °C. The boiling was incomplete (mass loss: 96 %).
- Executive summary:
Nau (2018) is a GLP-compliant study following OECD guideline 103 and EU method A2. It is reliable without restrictions and is suitable for use for this endpoint. Boiling point was measured using differential scanning calorimetry. The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 183.9 °C. The boiling was incomplete (mass loss: 96 %).
Reference
Two DSC measurements in aluminium crucibles with a hole were performed. The mass loss after the DSC measurements amounted to 96 %.
In the first test the test item was cooled down to -50 °C with a cooling rate of 1 K/min, -50 °C were kept for 60 min and afterwards the test item was heated up with a heating rate of 10 K/min. The measurement was stopped at 300 °C. The measurement showed an endothermal effect in the temperature range of 155 to 220 °C.No further endothermic or exothermic effects were observed up to the final temperature (300 °C).The onset temperature was derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
In the second test the test item was cooled down to -100 °C with a cooling rate of 1 K/min, -100 °C were kept for 360 min and afterwards the test item was heated up to 300 °C with a heating rate of 10 K/min. The measurement showed an endothermal effect in the temperature range of 150 to 225 °C.No further endothermic or exothermic effects were observed up to the final temperature (300 °C).The onset temperaturewas derived from the intersection of the tangent line with the highest slope of the endothermal peak with the baseline.
For the correction of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation, table and graphs of H.B. Hass and R.F. Newton in “CRC Handbook of Chemistry and Physics, 74th ed. 1993-1994“, pages 15-16 and 15-17 were used.
Table 1: DSC measurements
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endo-thermal) / °C |
Onset / °C |
Crucible |
Observations after the measurement |
36644 |
11.34 |
-50 |
300 |
155 to 220 |
183.71 |
Aluminium with a hole |
Black residue; mass loss: |
36650 |
11.13 |
-100 |
300 |
150 to 225 |
184.37 |
Aluminium with a hole |
Black residue; mass loss: |
Description of key information
Rhodium tris(2-ethylhexanoate) is placed on the market with two different solvents, 2-ethylhexan-1-ol and 2-ethylhexanoic acid. Information on both compositions is therefore included.
Rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol, had a mean boiling point at atmospheric pressure (1013.3 hPa) of 183.9 °C. The boiling was incomplete (mass loss: 96 %).
Rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid had a mean boiling point at atmospheric pressure (1013.3 hPa) of 225.8°C. The boiling was incomplete (mass loss: 95 %) and partial decomposition cannot be excluded.
Key value for chemical safety assessment
Additional information
Rhodium tris(2-ethylhexanoate) is placed on the market with two different solvents, 2-ethylhexan-1-ol and 2-ethylhexanoic acid. Information on both compositions is therefore included.
Nau (2018a) is a GLP-compliant study following OECD guideline 103 and EU method A2 and assessed the boiling point of rhodium tris(2-ethylhexanoate), solvent 2-ethylhexan-1-ol. The study is reliable without restrictions and is suitable for use for this endpoint. Boiling point was measured using differential scanning calorimetry. The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 183.9 °C. The boiling was incomplete (mass loss: 96 %).
Nau (2018b) is a GLP-compliant study following OECD guideline 103 and EU method A2 and assessed the boiling point of rhodium tris(2-ethylhexanoate), solvent 2-ethylhexanoic acid. The study is reliable without restrictions and is suitable for use for this endpoint. Boiling point was measured using differential scanning calorimetry. The test item had a mean boiling point at atmospheric pressure (1013.3 hPa) of 225.8°C. The boiling was incomplete (mass loss: 95 %) and partial decomposition cannot be excluded.
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