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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 220-011-6 | CAS number: 2602-34-8
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:
- 2011-07-14
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted in accordance with OECD 102 but not in compliance with GLP.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- Differential Thermal Analysis
- Melting / freezing pt.:
- < -70 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A limit melting point of <-70°C was determined for the substance using OECD 102 test guideline, the result is considered reliable.
Reference
A base line shift of endothermicity increase was observed around about -135 °C (186 K). No other event implying phase transition was observed up to 100 °C (373 K). The nature of this event is unclear. Based on this observation, two measurements with slower heating rate, 3 °C/min, were performed, whose recorded DSC-curves are plotted in firgures 2 and 3. In both of these curves, base line shifts of endothermicity increase were observed. In one of these curves, a small exothermic peak was also recorded around -78 °C (195 K). This behavior suggests super cooling, but it is impossible to understand these observations from this tests. Considering the test substance is liquid at room temperature, and no event indicating phase transition was observed from -70 °C (203 K) to room temperature, melting point can be concluded to be below -70 °C (203 K).
In conclusion, no clear phase transition from solid to liquid was observed under the test
condition, but the melting point of the test substance is likely to be below -70 °C (203 K).
Description of key information
Melting point [3-(2,3-epoxypropoxy)propyl]triethoxysilane: <-70°C (OECD 102).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -70 °C
Additional information
A measured melting point of <-70°C was determined for the substance using a relevant test method but not in compliance with GLP. The result is considered reliable.
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.
