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EC number: 200-624-5 | CAS number: 66-25-1
- 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:
- 2018-05-04 - 2018-11-05
- 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:
- 27 July 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 31 May 2008
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- -57.23 °C
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: no atm. pressure stated in the study report
- Conclusions:
- The melting point was determined as the endothermic event with -57.23 ± 0.21 °C (215.93 ± 0.21 K)
- Executive summary:
Determination of the melting point of the test substance was determined via DSC (differential scanning calorimetry) according to GLP, OECD 102 and EU method A.1.
Based on results obtained in the pre-test the melting point should be between -20 °C and -80 °C. In two DSC measurements an endothermic event during the heating up phase was detected. The endothermic event can be identified as melting point (evaluated with the onset function).
The melting point was determined as the endothermic event with -57.23 ± 0.21 °C (215.93 ± 0.21 K).
This value represents the mean of two independent determinations.
Reference
At the pre-Test it was determined, that the melting point was between -20.3 and -80 °C.
First Determination: A melting point of -57.08 °C was detected.
Second Determination: A melting point of -57.37 °C was detected.
As the deviation between the two evaluated determinations was less than 0.5 K the result can be considered valid.
The melting point of the substance is stated as mean value of both determinations: -57.23 °C.
Description of key information
Determination of the melting point of the test substance was determined via DSC (differential scanning calorimetry) according to GLP, OECD 102 and EU method A.1.
Based on results obtained in the pre-test the melting point should be between -20 °C and -80 °C. In two DSC measurements an endothermic event during the heating up phase was detected. The endothermic event can be identified as melting point (evaluated with the onset function).
The melting point was determined as the endothermic event with -57.23 ± 0.21 °C (215.93 ± 0.21 K).
This value represents the mean of two independent determinations.
Melting point / freezing point of hexanal was described in several handbooks. Described properties are nearly the same: The melting point of hexanal is about -56 °. This information is supported by calculation (-55.13 °C). All supporting values are in range with the experimental result.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -57.23 °C
Additional information
No atmospheric pressure was stated in the study report, but for melting point detection this is not of relevance for the result. Therefore assuming the standard atm. pressure is applicable for the CSA.
Literature/Calculation-data:
CRC Handbook:
The melting point of hexanal is -56 °C.
Sax Dang. Prop.:
The melting point of hexanal is -56.3 °C.
EPI Suite:
Melting point of hexanal was calculated to be -55.13 °C as mean of the calculated results of the adapted Joback method (-76.78 °C) and the Gold and Ogle Method (-36.47 °C).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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