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Diss Factsheets
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EC number: 264-761-2 | CAS number: 64265-45-8
- 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:
- 2007-03-19 to 2007-06-20
- 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:
- EEC Publication no. L383, December 29, 1992
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 27, 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Decomp. temp.:
- >= 150 °C
- Remarks on result:
- not determinable
- Conclusions:
- No melting point was found.
- Executive summary:
The melting point of Amphopropionate C8 was determined according to OECD Guideline 102 (27 July 1995) and EU Method A.1 (29 December 1992) using differential scanning calorimetry.
Besides a glass transition between -50°C (223 K) and -15°C (273 K) with an extrapolated onset of -29°C (244 K), no melting was observed below the temperature of 150°C (423 K) at which reaction and/or decomposition of the test substance started. Therefore, the test substance has no melting temperature.
Reference
Preliminary test
From the start until approximately 150°C the weight of the sample slightly decreased. From approximately 150°C upwards the weight of the sampie significantly decreased. At 234°C, the sampie weight had decreased by 25%. After the experiment, a dark brown coloured (original colour: orange - light brown) residue remained in the sampie pan. The change of the colour of the test substance indicates reaction and/or decomposition.
Main study
During cooling, a glass transition was observed between -10°C and -50°C. During heating, a glass transition was observed between -50°C and -15°C, with an extrapolated onset temperature of -28°C in the first experiment and -29°C in the second experiment. Above approximately 150°C reaction and/or decomposition of the test substance was observed. After the experiment, a sticky, yellowish coloured liquid remained in the sample container.
Besides a glass transition between -50°C (223 K) and -15°C (258 K) with an extrapolated onset of -29°C (244 K), no melting and/or boiling was observed below the temperature of 150°C (423 K) at which reaction and/or decomposition of the test substance started. Therefore, the test substance has no melting and/or boiling temperature.
Description of key information
No melting point was found below decomposition temperature of 150°C (423 K) (OECD TG 102 / EU Method A.1; differential scanning calorimetry) ; RL1; GLP
Key value for chemical safety assessment
Additional information
Besides a glass transition between -50°C (223 K) and -15°C (273 K) with an extrapolated onset of -29°C (244 K), no melting was observed below the temperature of 150°C (423 K) at which reaction and/or decomposition of the test substance started. Therefore, the test substance has no melting temperature.
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