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EC number: 947-375-5 | CAS number: -
- 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:
- 24 Oct. 2017 - 06. Dec. 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Version / remarks:
- 1995
- Deviations:
- yes
- Remarks:
- A Cottrell vessel with three openings and an additional thermometer in the sample was used instead of a vessel with two openings. It allows to detect the temperature of the substance in the Cottrell vessel.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2008
- Deviations:
- yes
- Remarks:
- A Cottrell vessel with three openings and an additional thermometer in the sample was used instead of a vessel with two openings. It allows to detect the temperature of the substance in the Cottrell vessel.
- Principles of method if other than guideline:
- Not applicable
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- inspected on 13 and 14 October 2014 / signed on 08 April 2015
- Type of method:
- dynamic method
- Remarks:
- and DSC method
- Decomposition:
- ambiguous
- Remarks on result:
- not determinable
- Conclusions:
- No boiling point can be determined using standard methods conducted in this study (DSC method and dynamic method) and signs of potential decomposition of the substance were observed during the tests.
- Executive summary:
A reliable GLP experimental study, conducted according to a recognized OECD/EC guidelines is available. It is considered as a key study.
The DSC method and the dynamic method with Cottrell apparatus were performed to determine the initial boiling point of the substance.
Using the dynamic method, a significant difference of temperatures between Cottrell pump and test item was observed during the study, which may be the sign of decomposition of the substance. The change of appearance of the test item after measurement would confirm this.
In addition no endo/exothermic events were detected using the DSC method, which may indicate the boiling or a potential decomposition of the substance.
Therefore no temperature of initial boiling point or initial decomposition of the test item can be determined using the dynamic method or DSC method used in this report.
Reference
Pre-test following Siwoloboff method
Observations Pre-test following Siwoloboff method
Observations |
Temperatures |
Melting start |
Since 40 °C |
Melted with a solid part |
90 °C |
Completely melted |
100 °C |
Some bubbles on surface |
120 °C |
Lots of foam, looks like boiling, especially in ground zone, the upper part rose up in the capillary. Tube slightly dropped. Foam vanished test item is liquid with bubbles on the surface. |
130 °C |
Burner switched off |
155 °C |
No bubbles visible anymore |
150 °C |
After cooling down the test item appeared as a black-red- brown solid, more homogeneous as before the determination.
Some of this material was ground and looked like the original state.
DSC measurements:
The DSC measurements yield no reliable results which indicate a boiling of the test item (no clear endothermic event was observed) . However, after testing, the following observations were reported:
weight loss of crucible after measurement | Observations | |
First measurement | 75.7% | The crucible was visual unchanged and opened the test item was carbonized. |
Second measurement |
77.7% |
The test item had left the crucible through the perforation. |
The ambient pressure was recorded with 100258 Pa.
Results following the dynamic method:
Two experiments were performed using the dynamic method to determine the initial boiling point of the substance.
Beginning boiling was observed in the vessel at 100°C (first determination ) and 95 °C (second determination). At a temperature of
130°C (first determination ) and 120 °C (second determination) the test item boiled with foam and a colourless condensate was visible. At 155°C (first determination) 145°C (second determination), there ise more foam and the test item began to rise up. No mixture of vapour and liquid were produced. The temperature was stable at 170°C (first determination) and 164 °C (second determination) whereas the temperature of the Cottrell pump was measured with 62.2 °C and 61.3°C respectively. Due to the difference of temperatures between the Cottrell pump and the test item, no clear initial boiling point can be determined using dynamic method. After cooling down the test item had become to a black –brown solid with a bit of an oily liquid. The difference of temperatures may indicate a decomposition of the test item and the changed appearance after cooling down may confirm this.
Considering that the DSC didn’t allow detecting a potential decomposition or a phase transition of the substance (such as boiling point), no initial boiling point of the test could be determined using the standard methods reported in this report.
No observations were made which might cause doubts on the validity of the study outcome. Therefore, the result of the study is considered valid.
Description of key information
No boiling point can be determined using standard methods (DSC and Dynamic methods) and signs of decomposition of the test item were observed during the tests.
Key value for chemical safety assessment
Additional information
A reliable GLP experimental study, conducted according to a recognized OECD/EC guidelines is available.
It is considered as a key study.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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