Registration Dossier
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EC number: 500-017-8 | CAS number: 9005-00-9 1 - 2.5 moles ethoxylated
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:
- 04 - 15 Aug 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- other: VTA(S)31x93001.02 (internal method)
- GLP compliance:
- no
- Type of method:
- thermal analysis
- Remarks:
- differential scanning calorimetry
- Melting / freezing pt.:
- >= -3 - <= 53 °C
- Atm. press.:
- ca. 1 013 hPa
- Melting / freezing pt.:
- 43 °C
- Atm. press.:
- ca. 1 013 hPa
- Remarks on result:
- other: crystallisation
Reference
Test conducted under atmospheric pressure condition, decomposition/sublimation, as well as decomposition /sublimation temperature is not specified.
The test item shows an area of melting temperatures between -3 and 53 °C (melting of crystalline parts). The cooling run shows a crystallisation effect at 43 °C.
Up to 100 °C the sample shows no significant weight loss.
The sample was melted at 70 °C before measuring, the reason for melting is not clearly reported.
The additionally obtained boiling point with the DSC measurement is inconsistant with the boiling measurement due to the used open instead of the partially capsulated crucible, since the shown melting point is consistant.
Description of key information
-3 to 53°C at ca. 1013 hPa (OECD 102, DSC)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 47.9 °C
Additional information
The melting point of the substance was determined by Differential Scanning Calorimetry according to OECD Guideline 102. During heating, various endothermic effects were observed between -3 and 53 °C. All of these effects were attributed to the melting of th crystalline parts of the substance. The biggest effect was noticed at 47.9 °C, which will be used as key value for chemical safety assessment. During cooling down, a crystallization effect was observed at 43 °C.
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