Registration Dossier
Registration Dossier
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EC number: 274-936-5 | CAS number: 70851-50-2
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:
- 22-Jul-2014
- 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:
- EU Method A.2 (Boiling Temperature)
- GLP compliance:
- no
- Type of method:
- photocell detection
- Remarks:
- capillary tube method
- Boiling pt.:
- 347.8 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A boiling point value of 347.8°C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.
Reference
Results
At small deviations from the normal pressure (max. ± 5 kPa) the boiling temperatures are normalized to Tn by means of the following number-value equation by Sidney Young:
Tn= T + ( fT x delta p)
delta p = (101.325 – p)
p = pressure measurement in kPa
fT= rate of change of boiling temperature with pressure in K / kPa = 0.50
T = measured boiling temperature in K
Tn= boiling temperature corrected to normal pressure in K
Correction factor (fT) according to EC-Guideline.
Test
|
Measured boiling temperature |
Measured atmospheric pressure |
Boiling temperature corrected to normal atmospheric pressure |
||
|
°C |
K |
kPa |
°C |
K |
1 |
345.9 |
619.1 |
961 |
348.5 |
621.7 |
2 |
344.4 |
617.6 |
961 |
347.0 |
620.2 |
Mean value |
345.2 |
618.4 |
961 |
347.8 |
621.0 |
Description of key information
Dimethoxymethyloctadecylsilane: 347.8°C at 1013 hPa (QSAR)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 347.8 °C
Additional information
A boiling point value of 347.8 at 1013 hPa was determined by capillary tube method (photocell detection) according to OECD Guideline 103.
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