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EC number: 205-623-3 | CAS number: 144-33-2
- 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:
- supporting study
- Study period:
- from 2017-03-22 to 2017-04-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same 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
- Key result
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 158.03 °C
- Remarks on result:
- other: boiling point of decomposed product - 310.26 °C
- Conclusions:
- The substance decomposes before boiling.
- Executive summary:
A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling of the test item usingdifferential scanning calorimetry(DSC). In the preliminary test, decomposition of the test item was observed. Furthermore, in an additional testcolourless condensate was observed. The condensate dropped back and reacted with the still solid test item. The formed liquid turned to yellow and boiled. No boiling point of the test item could be determined under these circumstances. However, based on the observations of the pre-test and the additional test the boiling point of the decomposed product was determined by DSC method (second event). Two measurements were performed and the lower temperature was stated as start of boiling of the decomposition product. The decomposition temperature was determined to be 158.03 °C and the boiling point of the decomposed product 310.26 °C (reference 4.3-2).
As the test item decomposed the validity criteria according to the guideline are not applicable for the determination of the decomposition temperature.
Reference
Pre-test for boiling point following Siwoloboff
The pre-test was not carried out as the test item showed decomposition in the melting point pre-test.
Additional test
A colourless condensate was observed. The condensate dropped back and reacted with the still solid test item. The formed liquid turned to yellow and boiled.
DSC measurement (main test)
Table 1: Values and Observations from DSC Measurements
Mass test item |
Mass crucible (before measurement): |
Mass crucible (after measurement): |
Observations | |
First measurement | 1.75 mg | 46.89 mg | 46.20 mg | After the test the crucible was visually unchanged, the crucible was opened and a brown residue was visible. |
Second Measurement |
1.73 mg | 47.63 mg | 46.97 mg | After the test the crucible was visually unchanged. |
Based on the observations of the pre-test and the additional test the second event (endothermic) was indicated as boiling point of the decomposition product. The lowest value of measurement 1 and 2 is stated as start of boiling of the decomposition product.
Table 2: Results from DSC Measurements
Boiling point of the decomposition product |
in °C | in K |
1st Determination | 316.30 | 589.45 |
2nd Determination | 310.26 | 583.41 |
Beginning of event | 310.26 | 583.41 |
Description of key information
The substance decomposes before boiling.
Key value for chemical safety assessment
Additional information
A study was conducted according to OECD test guideline 103 and Regulation (EC) No 440/2008 method A.2 to determine the boiling of the test item using differential scanning calorimetry (DSC). In the preliminary test, decomposition of the test item was observed. Furthermore, in an additional test colourless condensate was observed. The condensate dropped back and reacted with the still solid test item. The formed liquid turned to yellow and boiled. No boiling point of the test item could be determined under these circumstances. However, based on the observations of the pre-test and the additional test the boiling point of the decomposed product was determined by DSC method (second event). Two measurements were performed and the lower temperature was stated as start of boiling of the decomposition product. The decomposition temperature was determined to be 158.03 °C and the boiling point of the decomposed product 310.26 °C (reference 4.3-2).
As the test item decomposed the validity criteria according to the guideline are not applicable for the determination of the decomposition temperature.
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