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EC number: 203-062-9 | CAS number: 102-86-3
- 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
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 23-02-2018 to 25-07-2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- 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)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 11357-1. (2009). Plastics -- Differential Scanning Calorimetry (DSC) – Part 1: General principles. CEN, Bruxelles
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 11357-3. (2013). Plastics -- Differential Scanning Calorimetry (DSC) – Part 3: Determination of temperature and enthalpy of melting and crystallization. CEN, Bruxelles
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Trihexylamine
- EC Number:
- 203-062-9
- EC Name:
- Trihexylamine
- Cas Number:
- 102-86-3
- Molecular formula:
- C18H39N
- IUPAC Name:
- trihexylamine
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- < -20 °C
- Atm. press.:
- 968 hPa
- Decomposition:
- no
- Remarks on result:
- other: Mean of 2 determinations
Any other information on results incl. tables
Results of this study are considered valid as the following criteria were met:
- The crucible was visually checked and no degradation was observed during the study. By opening it, it appeared that there was no test item left in the crucible.
- The temperature difference obtained between the two determinations is less than 0.5°C up to 326.85°C and less than 2°C up to 1000°C.
- The melting point obtained on the reference substance, Indium, is included in the checking chart limits.
- The corrected sensitivity, i.e. the enthalpy measured during the melting of indium, does not differ by more than 10% from the expected value.
Applicant's summary and conclusion
- Conclusions:
- The melting point of the substance was determined as <– 20 °C.
- Executive summary:
A study was performed to determine the melting point of the test item. The method used was Differential Scanning Calorimetry (DSC) and the test was according to Regulation EC No. 440/2008 Method A.1 and OECD Test Guideline 102 , "Melting Point/Melting Range" and following GLP. In this method, two crucibles were put in the apparatus furnace under inert atmosphere (helium) at atmospheric pressure. One crucible contained the test item, the other was empty and considered as the reference. A specific temperature program was applied. The crucibles were linked to two thermocouples fixed on the TG-DSC sample carrier. Heat flow differences between the two crucibles and mass variation were recorded on a thermogram. A cooling system using liquid nitrogen allowed experiments with low temperatures down to -120°C. Two trials were conducted and corresponding thermograms were obtained, giving the following results:
Trial 1: <-20°C at 968 hPa; Trial 2: <-20°C at 968 hPa.
The melting point values respect validity criteria. Moreover, the melting point of the Indium respects the checking cards limits (156.5°C for a reference value of 156.6°C) so as its enthalpy (30.96 J/g for a reference value of 28.6 J/g).
The melting point of the substance was determined as < – 20.0 °C.
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