Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 229-861-2 | CAS number: 6790-58-5
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:
- From 03/07/2012 to 24/07/2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
- 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: BS4634; Determination of melting point
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Inspected on 15th and 16th November 2011 / Signed on 1st May 2012
- Type of method:
- capillary method
- Key result
- Melting / freezing pt.:
- 75.1 °C
- Atm. press.:
- 97.2 kPa
- Remarks on result:
- other: accuracy +/-0.5 °C
- Executive summary:
The melting point of the test substance was determined under GLP according to BS4634 (listed in OECD 102/EU A1 guideline), capillary method. Two main runs were performed, and the mean final temperature was retained.
Melting (i.e. solid-liquid transition) occurs at the single temperature of 75.1°C (348.3K).
- 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
- Remarks:
- The study was conducted according to an internationally recognised method. The substance is considered to be adequately characterised with its purity. Therefore full validation applies.
- 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: BS4634; Determination of melting point
- GLP compliance:
- no
- Type of method:
- capillary method
- Melting / freezing pt.:
- 63.9 °C
- Atm. press.:
- 96.8 kPa
- Remarks on result:
- other: accuracy +/-0.5 °C
- Executive summary:
The melting point of the test substance was determined according to BS4634 (listed in OECD 102/EU A1 guideline), capillary method. Two main runs were performed, and the mean final temperature was retained.
Melting (i.e. solid-liquid transition) occurs at the single temperature of 63.9°C (337.1K).
Referenceopen allclose all
Results
| t (initial) | t (final) | t (melting average) | |
| Preliminary test : | 348.1 K | 349.2 K | 348.7 K |
| Determination 1 : | 347.6 K | 348.3 K | 348.0 K |
| Determination 2 : | 347.6 K | 348.2 K | 347.9 K |
| mean of det.1 and 2 | 347.6 K | 348.3 K |
The difference between initial and final melting temperature is within accuracy, therefore the average of final temperatures in the main determinations is retained = 348.3 K
Results
| t (initial) | t (final) | t (melting average) | |
| Preliminary test : | 337.5 K | 339 K | 338.3 K |
| Determination 1 : | 336.2 K | 337.1 K | 336.7 K |
| Determination 2 : | 336 K | 337 K | 336.5 K |
| mean of det.1 and 2 | 336.1 K | 337.1 K |
The difference between initial and final melting temperature is within accuracy, therefore the average of final temperatures in the main determinations is retained = 337.1 K
Description of key information
Melting (i.e. solid-liquid transition) occurs at a single temperature (i.e. not a range) between 63.9 and 75.1°C, depending on purity.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 75.1 °C
Additional information
Two fully reliable experimental studies, conducted according to a recognized OECD/EC method, are available. Both are considered as key studies, as relating to two different purities. The result for the highest purity is retained as key data for purpose of CSA.
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.
