Registration Dossier
Registration Dossier
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EC number: 500-155-9 | CAS number: 62362-49-6 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:
- 1 October 2018 to 14 March 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Purity: 100% (UVCB)
Appearance/Physical state: Solid, white pastille
Storage: Room temperature in the dark - Key result
- Boiling pt.:
- > 195 °C
- Atm. press.:
- 101.6 kPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 195 °C
- Conclusions:
- In a study conducted according to OECD 103, using differential scanning calorimetry, the test item was determined to decompose from 195 deg.C at 101.6 kPa. As the test item decomposed, no value for boiling point could be determined.
- Executive summary:
The test item decomposed from approximately 195 deg. C at 101.6 kPa, by differential scanning calorimetry and using a modified liquid bath method, designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008, and OECD Guidelines for Testing of Chemicals No. 103, 27 July 1995. As the test item decomposed, no value for boiling point could be determined.
Reference
The left limit of the small endotherm observed at approximately 200 deg. C onwards in the thermal analysis has been considered as the onset of decomposition noted in the modified liquid bath test.
As a result of the low rate of enthalpy change and color change during decomposition, the onset temperature could only be approximated.
Similar thermographic profiles were obtained using air and nitrogen atmospheres, which indicates that the observed decomposition is probably thermal and not oxidative.
Description of key information
In a study conducted according to OECD 103, using differential scanning calorimetry, the test item was determined to decompose from 195 deg. C at 101.6 kPa. As the test item decomposed, no value for boiling point could be determined.
Key value for chemical safety assessment
Additional information
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