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Diss Factsheets
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EC number: 947-726-2 | 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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Remarks:
- DSC (main test), thermogravimetric analysis (TGA), visual inspection by capillary method
- Melting / freezing pt.:
- >= -42.5 - <= 50.2 °C
- Atm. press.:
- 1 010 hPa
- Decomposition:
- yes
- Conclusions:
- The melting range of Di-C12-18 alkyldimethyl ammonium chloride was determined to be -42. 5 °C - 50.2 °C (at 1010 hPa).
- Executive summary:
The melting point of Di-C12-18 alkyldimethyl ammonium chloride was determined according to OECD Guideline 102 and EU method A.1 by differential scanning calorimetry and visual methods.
As an average, a melting range of - 42.5 °C to 50.2 °C at 1010 hPa was measured by DSC which is lower as the clear point of 80 °C recorded at the visual observation, however, this may be falsified by the occurring gas bubbles.
Reference
In the TGA test, a sample of the test item was heated from 30 °C to 455 °C in an inert gas atmosphere (N2). Between 30 °C and 85 °C it lost 0.6 % of its weight, which can be mainly attributed to the partial evaporation of residual iso-propanol and water.
Above 179 °C (onset) the weight continuously decreased and reached a loss of approx. 99.5 % at 360 °C.
Even in the preliminary DSC test an endothermic signal was recorded above 179 °C (178.9 °C (onset) and 231.8 °C (endset)). Thus, with the recorded weight loss this effect could be allocated to a boiling behaviour, however, from the knowledge of the chemical structures this endotherm is most likely allocated to a degradation process.
During the first heating period of the main DSC test, an endothermic signal was recorded over a temperature range of - 27.8 °C … 60.7 °C, which can be attributed to the melting procedure as in the DSC main tests corresponding comparable exothermic signals were recorded.
The broad temperature range at which the melting process was detected can be explained by the broad chain length variety of the alkyl moieties. Thus, a defined melting point is not assessable, a melting range is reported instead.
As an average, a melting range of - 42.5 °C to 50.2 °C was measured by DSC which is lower as the clear point of 80 °C recorded at the visual observation, however, this may be falsified by the occurring gas bubbles.
Description of key information
- 42.5 °C to 50.2 °C at 1010 hPa (OECD TG 102/ EU method A.1; non-GLP, RL1)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 50.2 °C
Additional information
The melting point of Di-C12-18 alkyldimethyl ammonium chloride was determined according to OECD Guideline 102 and EU method A.1 by differential scanning calorimetry and visual methods.
As an average, a melting range of - 42.5 °C to 50.2 °C at 1010 hPa was measured by DSC which is lower as the clear point of 80 °C recorded at the visual observation, however, this may be falsified by the occurring gas bubbles.
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