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EC number: 500-234-8 | CAS number: 68891-38-3 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:
- 16 - 18 Dez 2009
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: ASTM E737-76
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
- Melting / freezing pt.:
- > 300 °C
- Atm. press.:
- 101 kPa
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 26 Nov 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Buerau for Chemical Substances and Preparations, Łódź, Poland
- Type of method:
- capillary method
- Melting / freezing pt.:
- >= 150 - <= 159 °C
- Atm. press.:
- 102.1 kPa
- Remarks on result:
- other: 423 - 432 K
Referenceopen allclose all
The measuring accuracy was addicted to BŰCHI Melting Point 545 apparatus accuracy (measuring accuracy up to 373.15 K - ± 0.3 K; up to 523.15 K - ± 0.5 K and up to 673.15 K - ± 0.8 K) and equal to ± 0.8 K.
The results of three measurements were showed in following table:
Sample |
Initial value of melting point, K |
Final value of melting point, K |
Atmospheric pressure, kPa |
1 |
423.2 |
432.3 |
102.1 |
2 |
423.2 |
433.3 |
102.1 |
3 |
423.3 |
430.2 |
102.1 |
Average values ± standard deviations, K |
423.2 ± 0.1 |
431.9 ± 1.6 |
102.1 |
Description of key information
The melting point is > 300 °C at 101 kPa (2 EO, ASTM E 737-76) or is from 150 - 158 °C at 102 kPa (1 EO, EU A.1.).
Key value for chemical safety assessment
Additional information
The values for melting point are taken from the study report and company data.
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