Registration Dossier
Registration Dossier
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EC number: 231-388-1 | CAS number: 7526-26-3
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:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E537-86
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- yes
- Remarks:
- please see below principle of method if other that guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- yes
- Remarks:
- please see below principle of method if other that guideline
- Principles of method if other than guideline:
- A phase transformation, e.g. melting/freezing in this instance, or a reaction such as decomposition, usually is associated with a heat effect. In the calorimeter two identical aluminum crucibles, one filled with the test item and the other empty (used as the reference), are heated at a constant rate. During the experiment, the heat effect i.e. the difference in heat flow between the sample crucible and the reference crucible is registered.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- 35.6 °C
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: mean value of two determinations; at normal atmospheric pressure, not further specified
- Conclusions:
- melting point = 35.6 ± 0.5 °C
- Executive summary:
The melting point of the test substance has been determined to be 35.6 ± 0.5 °C (308.7 ± 0.5 K) by differential scanning calorimetry in a GLP study (2012) according to ASTM E537-86, designed to be compatible OECD 102 and EU method A.1.
Reference
Description of key information
The melting point of the test substance has been determined to be 35.6 ± 0.5 °C (308.7 ± 0.5 K) by differential scanning calorimetry in a GLP study (2012) according to ASTM E537-86, designed to be compatible OECD 102 and EU method A.1.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 35.6 °C
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
