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EC number: 946-533-0 | 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

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:
- 2015-08-10 to 2015-12-12
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- (May 30th 2008)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- (adopted on 27 July 1995)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- other: differential scanning calorimetry / visual methods (Capillary Method/Hotbench)
- Decomp. temp.:
- >= 190 °C
- Remarks on result:
- not determinable
- Remarks:
- No thermodynamic melting point could be identified up to beginning degradation at 190°C
- Conclusions:
- No thermodynamic melting point could be identified up to beginning degradation at 190 °C (1020 hPa). A sharp drop in viscosity from waxy solid to liquid (begin of fluidity) was observed in the range of 90 °C - 100 °C.
- Executive summary:
The melting temperature of Amphopropionates C12 -18 (93.6% a.i.) was determined by differential scanning calorimetry an visual methods according to the OECD Test Guideline 102 (adopted on 27 July 1995) and EU test method A.1 (1995). No thermodynamic melting point could be identified up to beginning degradation at 190 °C (1020 hPa). A sharp drop in viscosity from waxy solid to liquid (begin of fluidity) was observed in the range of 87 °C - 100 °C.
Reference
Results
Capillary method / Hotbench
In the melt microscope an onset-temperature of 87 °C was observed where the specimen began to get liquid, at 98 °C the sample became fluid. At the Kofler Heizbank at 95 °C - 100 °C the test item lost its resin structure and appeared as an oily phase. Between 100°C and 190°C the oil became more and more thin. While applying the test item the formation of some minor gas bubbles (evaporation of residual water) was observed, however, a significant loss of substance by evaporation could not be determined. Above 190 °C a formation of smoke was observed, the colour of the test item got more and more dark.
DSC/TGA
An endothermic signal was recorded over a temperature range of -29 °C - 8 °C. No additional phase transition could be observed up to 190 °C. This endothermic is possibly attributed to a solid-solid phase transformation, however, a melting of crystalline subcomponents cannot be completely excluded. The recorded discontinuities above 150°C indicate a beginning decomposition of the test item which corresponds to the increased weight loss. For the visually observed liquefaction around 90 °C - 100 °C no corresponding signal indication a phase transition was recorded in the DSC tests.
Description of key information
no melting point identified (OECD TG 102 / EU method A.1; RL1; no GLP)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 87 °C
Additional information
The melting temperature of Amphopropionates C12 -18 (93.6% a.i.) was determined by differential scanning calorimetry an visual methods according to OECD Test Guideline 102 (adopted on 27 July 1995) and EU test method A.1 (1995). No thermodynamic melting point could be identified up to beginning degradation at 190 °C (1020 hPa). A sharp drop in viscosity from waxy solid to liquid (begin of fluidity) was observed in the range of 87 °C - 100 °C. However, for the purpose of environmental exposure assessment, a key value of 87°C was used.
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