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EC number: 810-703-1 | CAS number: 1187441-10-6
- 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
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- April 29, 2004
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Identification: PARAD Substance 139
Batch: 31104251
Physical state: slightly yellowish viscous liquid
Purity: n.a. (mixture) - Key result
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- 85 - 125 °C
- Remarks on result:
- not determinable
- Conclusions:
- Under the study conditions, the test substance did not solidify at temperatures ≥-40°C. Therefore no melting temperature could be determined by the method used in this project. Reaction or decomposition of the test substance started in the temperature range 85°C–125°C (DSC method).
- Executive summary:
A study was conducted to determine the melting point/freezing point of the test substance according to OECD guideline 102 and EU Method A.1. The test substance and an inert reference were heated in a differential scanning calorimeter (DSC). The difference between the heat flow to the sample and the heat flow to the reference was recorded. Five experiments were performed. Three experiments were performed starting from 25°C and two experiments were performed starting from –40°C. The results of all experiments were combined for the conclusion.
Under the study conditions, the test substance did not solidify at temperatures ≥-40°C. Therefore no melting temperature could be determined by the method used in this project. Reaction or decomposition of the test substance started in the temperature range 85°C – 125°C (van der Baan-Treur, 2004).
Reference
Details on results
- First experiment (25°C – 175°C, 20°C/minute): Between 115°C and 125°C a small shift of the base line was observed into the endothermic direction. It is not clear what process caused this effect, but it appears insignificant for this study. A large exothermic effect started at about 125°C, probably caused by reaction or decomposition of the test substance. After the experiment the sample, the consistency of the sample did not seem to have changed. Weighing showed a small amount of mass-loss (0.4%).
- Second experiment (25°C - 320°C, 20°C/minute): A large exothermic peak was observed between 105°C and about 235°C, probably caused by reaction or decomposition of test substance. Above about 235°C an endothermic was observed, which reached a maximum at about 272°C. Above 272°C the endothermic effect rapidly decreased and changed into a large exothermic effect. After the experiment, the sample had lost 59% of its mass. The residue had a black colour (original colour: slightly yellowish). The change of the colour is an indication that the test substance had reacted or decomposed. The observed endothermic effect may be caused by a combination or reaction/decomposition of test substance and evaporation of test substance or reaction products.
- Third experiment (25°C – 260°C, 20°C/minute): A very small exothermic effect was observed between 85°C and 128°C, followed by a large exothermic effect between 128°C and about 242°C. The exothermic effects are probably caused by reaction or decomposition of test substance. Above about 242°C an endothermic effect was observed. After the experiment, the sample had a yellow colour and appeared to have hardened (glassy). The sample had lost 25% of its mass. The change of the colour of the sample is an indication that the test substance had reacted or decomposed.
- Fourth and the fifth experiments (-40°C to 40°C, 10°C/minute) respectively: No significant heat effects were observed. This implies that the test substance did not solidify when cooled down to -40°C. After the experiment the consistency and the mass of the sample did not seem to have changed.
In conclusion: the test substance was a viscous liquid at room temperature. The test substance did not solidify at temperatures > or = -40°C. Therefore no melting temperature could be determined by the method used in this project. Reaction or decomposition of the test substance started in the temperature range 85°C – 125°C.
Description of key information
The melting point/freezing point was determined according to OECD guideline 102 and EU Method A.1 (differential scanning calorimetry (DSC) method) (van der Baan-Treur, 2004).
Key value for chemical safety assessment
Additional information
The test substance did not solidify at temperatures ≥-40°C. Therefore no melting temperature could be determined using the DSC method.
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