Registration Dossier
Registration Dossier
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EC number: 201-206-5 | CAS number: 79-42-5
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:
- October 19, 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- 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
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- CAS No.: 79-42-5; EINECS No.: 201-206-5; Purity: >98 %; Lot No.: Batch: 56035 from 15/09/2016; Batch: 56631 from 25/10/2016; Batch: 58208 from 27/02/2017
- Key result
- Melting / freezing pt.:
- 16.49 °C
- Atm. press.:
- 1 013 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: +/- 0.43°C
- Conclusions:
- Under the study conditions, the mean melting/freezing temperature has been determined to be 16.49 °C +/- 0.43 °C (289.64 +/- 0.43 K).
- Executive summary:
A study was conducted to determine the melting point of the test substance using differential scanning calorimetry according to OECD Guideline 102 and EU Method A.1. Three runs were performed using 40 μL crucibles and 12.26, 16.00, 15.45 mg of the test substance, respectively. The measurements temperature was ranging from -30 °C to 40 °C and heating rate was 5 °/min. Under the study conditions, the mean melting/freezing temperature has been determined to be 16.49 °C +/- 0.43 °C (289.64 +/- 0.43 K) (Stannek, 2017).
Reference
Melting temperatures extracted from extrapolated peak
Run 1, batch 56035: 16.43 °C
Run 2, batch 56631: 16.09 °C
Run 3, batch 58208: 16.95 °C
Mean Value 16.49 °C, with standard deviation 16.49 °C +/- 0.43 °C (289.64 +/- 0.43 K)
Description of key information
The melting point was determined according to OECD Guideline 102 and EU Method A.1 (Stannek, 2017).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 16.49 °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.
