Registration Dossier
Registration Dossier
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EC number: 278-636-5 | CAS number: 77182-82-2
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Ammonium 2-amino-4-(hydroxymethylphosphinyl)butyrate
- EC Number:
- 278-636-5
- EC Name:
- Ammonium 2-amino-4-(hydroxymethylphosphinyl)butyrate
- Cas Number:
- 77182-82-2
- Molecular formula:
- C5H12NO4P.H3N
- IUPAC Name:
- ammonium 2-amino-4-[hydroxy(methyl)phosphoryl]butanoate
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Melting / freezing pt.:
- >= 215 - <= 218 °C
- Atm. press.:
- 1 013 hPa
- Decomp. temp.:
- >= 217 °C
Any other information on results incl. tables
Results
Thermal stability
The measurement in the closed glass pan shows an endothermal effect (melting) beginning at 180 °C, followed by a decomposition of the test substance in the range 245-305 °C, with a
decomposition energy of 190 J/g, and a small exothermal effect in the range 370-470 °C, with a decomposition energy of 78 J/g.
Melting temperatures
The determinations of melting / boiling point by DSC, Mettler-Toledo TA8000, were carried out in aluminium pans with a hole.
In aluminium pans, the diagrams show the endothermal effect (melting) is in the range 160-260 °C, with an onset of 217 °C followed by a decomposition of the test substance.
Ident-No. |
onset / °C |
Temperature range / °C |
Pan |
8040 |
215.2 |
160 - 260 |
Aluminium with a hole |
8041 |
217.5 |
170 – 255 |
Aluminium with a hole |
8051 |
218.2 |
165 – 255 |
Aluminium with a hole |
Melting range is: 215-218 °C.
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.
