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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 213-126-8 | CAS number: 925-83-7
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06 August 2018 - 19 October 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:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06 August 2018 - 19 October 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:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- 190.8 °C
- Conclusions:
- The melting temperature of the substance was determined to be 190.8°C.
Two experiments were performed to investigate the melting and boiling behaviour of the substance.
DSC EXPERIMENT 1
An endothermic effect was observed between 150°C and 225°C followed by an exothermic effect starting at 225°C. The extrapolated onset temperature of the first effect was 190.887°C. The endothermic effect was most likely caused by melting of the test item. The exothermic effect was probably caused by reaction and/or decomposition of the test item (see endpoint 4.3).
DSC EXPERIMENT 2
In order to investigate the endothermic effect, in Experiment 2 heating was stopped directly after the melting effect. The extrapolated onset temperature was 190.681°C. After the experiment, a white molten residue remained in the sample container (original colour: white). It demonstrated that melting was the reason for the endothermic effect.
DATA HANDLING
The melting temperature was determined as the mean melting temperature of Experiment 1 (190.887°C) and Experiment 2 (190.681°C).
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2016
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Version / remarks:
- 1996
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Sebacohydrazide
- EC Number:
- 213-126-8
- EC Name:
- Sebacohydrazide
- Cas Number:
- 925-83-7
- Molecular formula:
- C10H22N4O2
- IUPAC Name:
- sebacohydrazide
- Test material form:
- solid: particulate/powder
- Details on test material:
- Test item name (as stated in report): SDH
Test item storage: at room temperature protected from light
Constituent 1
Results and discussion
Boiling point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- >= 225 °C
Any other information on results incl. tables
Two experiments were performed to investigate the melting and boiling behaviour of the substance.
DSC EXPERIMENT 1
An endothermic effect was observed between 150°C and 225°C followed by an exothermic effect starting at 225°C. The first effect was ascribed to melting of the test item (see endpoint 4.2). The exothermic effect was probably caused by reaction and/or decomposition of the test item. After the experiment, a dark brown molten residue remained in the sample container (original colour: white). The change of the colour indicated reaction and/or decomposition of the test item. Based on this visual observation, it was concluded that the test item had molten and that the change of the colour demonstrated reaction and/or decomposition of the test item.
DSC EXPERIMENT 2
Performed in order to investigate the endothermic effect, see endpoint 4.2.
DATA HANDLING
Reaction and/or decomposition of the test item was observed in the DSC experiment at temperatures of > 225°C (> 498K) and confirmed by change of colour (after the experiment). Therefore the test item has no boiling temperature.
Applicant's summary and conclusion
- Conclusions:
- Boiling of the substance was not observed below the temperature at which reaction and/or decomposition started (i.e. at approx. 225°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.
