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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 814-233-8 | CAS number: 444649-70-1
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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- other: conventional differential scanning calorimetry (DSC)
- Principles of method if other than guideline:
- Many liquid acrylate resins solidify in an amorphous glassy structure upon cooling. Hence, reactive resins often show a glass transition rather than a melting behavior. Exceptionally, melting can be observed. Since the resins are liquid at room temperature, the glass transition/melting is measured at sub ambient temperatures using conventional differential scanning calorimetry (DSC).
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Batch no.: lot # JBGJ0045R
- Key result
- Melting / freezing pt.:
- -70 °C
- Atm. press.:
- ca. 101.3 kPa
- Conclusions:
- Under the study conditions, the glass transition temperature of the test substance was determined to be -70°C (DSC).
- Executive summary:
A study was conducted to determine the glass transition temperature/melting point of the test substance according to the conventional differential scanning calorimetry (DSC). A sample of ca. 10 mg was loaded in a standard aluminum crucible (40 µL) fitted with a pierced lid. The measurements were conducted at a linear heating rate of 10°C min-1 using commercial DSC equipment (Mettler DSC823e or Q10 from TA Instruments). The DSC cell was flushed with nitrogen gas at a flow rate of 50 mL min-1. Two experiments were performed. Under the study conditions, the glass transition temperature of the test substance was determined to be -70°C (Boutreau, 2011).
Reference
Description of key information
The melting point/glass transition temperature was determined according to the conventional differential scanning calorimetry (DSC) (Herssens, 2011)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -70 °C
Additional information
(Glass transition temperature)
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.
