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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 207-821-5 | CAS number: 496-46-8
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- other information
- Study period:
- October 2013
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: No guideline but a reliable method is use.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- Differential scanning calorimetry (DSC)
- GLP compliance:
- no
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- Perhydroimidazo[4,5-d]imidazole-2,5-dione
- EC Number:
- 207-821-5
- EC Name:
- Perhydroimidazo[4,5-d]imidazole-2,5-dione
- Cas Number:
- 496-46-8
- Molecular formula:
- C4H6N4O2
- IUPAC Name:
- perhydroimidazo[4,5-d]imidazole-2,5-dione
- Reference substance name:
- glycoluril
- IUPAC Name:
- glycoluril
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Constituent 2
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- ca. 272 - 275.8 °C
- Decomposition:
- yes
- Decomp. temp.:
- ca. 278.2 - 337 °C
Any other information on results incl. tables
Two phenomena are observed:
- an endothermic peak (melting point): peak from 266°C to 278.2°C (melting point at 272 -275.8°C)
- anexothermic peak (decomposition): from 278.2°C to 337°C.
Applicant's summary and conclusion
- Conclusions:
- The melting point of glycoluril is between 272°C and 275.8°C.
- Executive summary:
The melting point of glycoluril was measured by a Differential scanning calorimetry (DSC) method. The result is between 272°C and 275.8°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.
