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EC number: 905-964-4 | CAS number: -
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:
- 11 May 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM D 97-02
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pour point
- Melting / freezing pt.:
- -42 °C
- Atm. press.:
- 1 013 hPa
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 25 - 31 Oct 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- differential scanning calorimetry
- Melting / freezing pt.:
- -150 °C
- Atm. press.:
- ca. 1 013 hPa
- Remarks on result:
- other: glass transition temperature of the main component
- Melting / freezing pt.:
- -74 °C
- Atm. press.:
- ca. 1 013 hPa
- Remarks on result:
- other: glass transition temperature
Referenceopen allclose all
Results:
Pour Point of Reference substance
Analysis N° |
Pour – Point [°C] |
1 |
-24 |
2 |
-24 |
3 |
-24 |
Mean |
-24 |
Pour Point of GDA
Analysis N° |
Pour – Point [°C] |
1 |
- 42 |
2 |
- 42 |
3 |
- 42 |
Mean |
- 42 |
Measurement |
melting point / °C |
1 |
-74 |
2 |
-74 |
3 |
-74 |
Average |
-74 |
The heating run shows a glass transition temperature (amorphous components) at -74 °C (1st and 2nd heating run). The glass transition temperature of the test item (main component) was verified by subsequent test with an other DSC measurement starting at -150 °C.
The cooling run shows no crystallisation.
There are no values given for pressure but assumed to be measured at normal pressure (1013 hPa). No information is given on specification on decomposition/sublimation temperature.
Description of key information
pour point: -42 °C at ca. 1013 hPa
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -42 °C
Additional information
The pour point of the substance "Reaction mixture of glycerol-1,3-di(acetate), glycerol acetate and triacetin" (EC 905-964-4) was determined according ASTM D 97 -02 Method. The glass transition temperature (<=-74 °C) of the substance was determined according to OECD Guideline102 with differential scanning calorimetry.
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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