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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 213-651-2 | CAS number: 998-40-3
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-03-08 - 2017-05-03
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- EC Guideline A.1. Melting/Freezing Temperature. May 31, 2008.
EPA Product Properties Test Guideline OPPTS 830.7200: Melting Point/Melting Range. - Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Tributylphosphine
- EC Number:
- 213-651-2
- EC Name:
- Tributylphosphine
- Cas Number:
- 998-40-3
- Molecular formula:
- C12H27P
- IUPAC Name:
- tributylphosphane
- Test material form:
- not specified
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- > -75 - < -15 °C
- Decomposition:
- no
Any other information on results incl. tables
During cooling and heating no effects were observed which were due to crystallization and melting of the test item (results of the cooling step are archived in the raw data). After the experiment, the sample appeared to have been unchanged, i.e. no decomposition and/or evaporation were observed.
To further investigate the melting temperature of the test item, two subsamples of the test item were stored for 18 hours at -22.5 ± 0.4°C and at -81.9 ± 2.7°C respectively. It was observed after storage that the test item was a liquid (≤ -15°C freezer) and a solid (≤-75°C freezer), respectively. According to this it was concluded that the melting temperature of the test item is between -75°C and -15°C.
Applicant's summary and conclusion
- Conclusions:
- The melting temperature of the tributylphosphine is between -75°C and -15°C.
- Executive summary:
The melting temperature of the tributylphosphine is between -75°C and -15°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.
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.
