Registration Dossier
Registration Dossier
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EC number: 500-236-9 | CAS number: 68920-66-1 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:
- 2010-03-29 to 2010-04-19
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Deviations:
- no
- Principles of method if other than guideline:
- The practical test performance was based on the in-house test procedure VTA(S)31X93002.02: "Boiling temperature determination (Tb) of solid and liquid substances by means of DSC".
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Boiling pt.:
- 369 °C
- Atm. press.:
- 1 012 mBar
- Decomposition:
- yes
- Remarks on result:
- other: earliest boiling, from 369 °C the test item show thermal decomposition
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2012-03-01
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E537-07
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Boiling pt.:
- 368 °C
- Atm. press.:
- ca. 1 013 hPa
Referenceopen allclose all
Study Results:
The test item shows a boiling earliest at ca. 369 °C (at 1012 mbar) according to the definition in the OECD Guideline 103.
From 369 °C the test item shows a boiling and / or thermal decomposition with evaporation of the decomposition components.
The DSC measurements were confirmed by means of TGA measurements (no significant weight reduction below the main weight loss) under the same measuring conditions.
The start of the area of boiling temperatures is defined by using the on-set temperature.
The boiling point is average of two extrapolated onset temperatures in two runs: 368.17 °C = mean (363.75 °C, 372.58 °C)
Onset temperatures: 347.28 °C, 334.07 °C, mean 340.68 °C.
Peak temperatures: 380.63, 375.94, mean 378.29 °C.
Description of key information
369 °C at 1012 mbar (OECD 103, DSC method)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 369 °C
Additional information
Data obtained in another DSC experiment (368.17 °C) is supporting.
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