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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 222-904-6 | CAS number: 3658-48-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13 - 15 Feb 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Cross-reference
- Reason / purpose for cross-reference:
- reference to same study
Reference
- Endpoint:
- self-reactive substances
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 13 - 15 Feb 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- other: OECD Guideline 102 (Melting point / Melting Range)
- Principles of method if other than guideline:
- According to UN RTDG, substances with heat of decomposition below 300 J/g do not need to be tested for self-reactivity.
Furthermore, in section 20.3.3.3 the differential scanning calorimetry (as used for the determination of the melting point of the substance) is considered as a suitable method for the determination of the heat of decomposition. - GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
In the temperature range from -100 °C to 500 °C, the thermograms show an endothermic effect beginning at approx. 220 °C which turns into an exothermic effect at 275 °C or 286 °C, respectively. The test item showed no further exothermic effects. The results are summarized in the following table.
No. |
Sample weight / mg |
Range of effect / °C |
Measured energy / J/g |
PN14928 |
10.22 |
285 - 310 (exothermic) |
94.25 |
PN14944 |
7.72 |
275 - 320 (exothermic) |
126.12 |
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 1 (Freezing Point)
- Version / remarks:
- 2009
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Hessisches Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Bis(2-ethylhexyl) phosphonate
- EC Number:
- 222-904-6
- EC Name:
- Bis(2-ethylhexyl) phosphonate
- Cas Number:
- 3658-48-8
- Molecular formula:
- C16H35O3P
- IUPAC Name:
- bis(2-ethylhexyl) phosphonate
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- < -100 °C
- Remarks on result:
- other: Pressure was not measured
Any other information on results incl. tables
Results
In the temperature range from -100 °C to 220 °C, no endothermic or exothermic effects were observed. The thermograms show an endothermic effect beginning at approx. 220 °C which turns into an exothermic effect at 275 °C or 286 °C, respectively.
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
PN14928 |
10.22 |
283.00 --- |
240 - 285 (endo) 285 - 310 (exo) |
9.47
|
PN14944 |
7.72 |
274.54 --- |
220 - 275 (endo) 275 - 320 (exo) |
6.59
|
The test item showed no distinct endothermic signal in the test that can be associated with a freezing point/melting point. The endothermic effect turning into an exothermic effect is associated with boiling under decomposition.
Due to no endothermic effect in the temperature range of -100 °C to room temperature the freezing point / melting point of the test item is < -100 °C.
Final Results
The test item exhibits no freezing point / melting point in the temperature range of -100 °C to room temperature as determined according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).
Applicant's summary and conclusion
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.
