Registration Dossier
Registration Dossier
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EC number: 500-017-8 | CAS number: 9005-00-9 1 - 2.5 moles ethoxylated
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 08 - 16 Aug 2011
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Qualifier:
- according to guideline
- Guideline:
- other: VTA(S)31X93002.02 (internal method)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Boiling pt.:
- > 371 °C
- Atm. press.:
- 1 009 hPa
- Decomp. temp.:
- > 371
Reference
The DSC curve shows two large endothermic effects, of which one was attributed to melting (at ca 50 °C) and the other one was assigned as the earliest begin of boiling/decomposition. The onset temperarure of this effect was determined as 371°C. Beginning with 371 °C the test item shows a boiling point and/or thermal decomposition with evaporation of the decomposition components. The DSC measurements were confirmed by means of TGA measurements (no significant weight loss before the mentioned boiling / decomposition temperature).
Description of key information
> 371 °C at 1009 hPa (could be decomposition) (OECD 103, DSC)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 371 °C
Additional information
The boiling behaviour of the substance was determined by Differential Scanning Calorimetry according to OECD Guideline 103. Based on the shape of the DSC curve it was concluded that from 371 °C onwards the substance boils and/or thermally decomposes with evaporation of decomposition components. The onset temperature of the endothermic effect, i.e. 371 °C will be used as key value for chemical sefatey assessment.
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