Registration Dossier
Registration Dossier
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EC number: 284-902-1 | CAS number: 84989-13-9
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:
- 03 August 2017 - 09 April 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Study was conducted in accordance with international guidelines and in accordance with GLP. All guideline validity criteria were met.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- Regulation (EC) 440/2008 of 30 May 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- July 1995
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Key result
- Melting / freezing pt.:
- -4.3 °C
- Atm. press.:
- >= 1 003 - <= 1 006 hPa
- Decomposition:
- no
- Sublimation:
- no
- Remarks on result:
- other: Mean value
- Remarks:
- Arising from 2 determinations.
- Conclusions:
- The melting point/ freezing point of the test item is -4.3 °C.
- Executive summary:
EU Method A.1. – The melting point/freezing point of the test item was determined using differential scanning calorimetry. The procedure employed was designed to be compatible with Method A.1., Melting/Freezing Temperature, of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Aliquots of test item (0.012 - 0.027 g) were placed in crucibles and subjected to a thermal program from -100 °C to 500 °C. Cooling at a constant rate of 0.25 K/min was followed by a waiting period of 30 minutes at -100 °C and heating at a constant rate of 10 K/min to 500 °C. Two determinations were carried out. Both determinations were conducted under an inert atmosphere.
The melting/freezing temperature of the test item was established as being < -4.3 °C.
Reference
Description of key information
Melting Point: -4.3 °C; EU Method A.1.; S Seitz (2017)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -4.3 °C
Additional information
EU Method A.1. – The melting point/freezing point of the test item was determined using differential scanning calorimetry. The procedure employed was designed to be compatible with Method A.1., Melting/Freezing Temperature, of Commission Regulation (EC) No 440/2008 of 30 May 2008.
Aliquots of test item (0.0012 - 0.0027 g) were placed in crucibles and subjected to a thermal program from -100 °C to 500 °C. Cooling at a constant rate of 0.25 K/min was followed by a waiting period of 30 minutes at -100 °C and heating at a constant rate of 10 K/min to 500 °C. Two determinations were carried out. Both determinations were conducted under an inert atmosphere.
The melting/freezing temperature of the test item was established as being < -4.3 °C.
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