Registration Dossier
Registration Dossier
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EC number: 231-764-5 | CAS number: 7722-76-1
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:
- 01 March 2010 – 25 March 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- (differential scanning calorimetry)
- Key result
- Melting / freezing pt.:
- 197 °C
- Atm. press.:
- 1 013.25 hPa
- Decomposition:
- yes
- Remarks:
- Reaction and/or decomposition was observed directly after melting
- Decomp. temp.:
- > 197 °C
- Sublimation:
- no
- Melting / freezing pt.:
- 471 K
- Conclusions:
- The melting temperature of ammonium dihydrogenorthophosphate was determined to be 197°C using using differential scanning calorimetry (GLP-compliant study in accordance with EC A.1, OECD 102). The substance decomposes during melting.
Reference
Description of key information
The melting temperature of ammonium dihydrogenorthophosphate was determined to be 197°C using differential scanning calorimetry (EC A.1, OECD 102, GLP). The substance decomposes directly after melting.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 197 °C
Additional information
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.
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