Registration Dossier
Registration Dossier
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EC number: 211-854-0 | CAS number: 701-35-9
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-May to 30-Jun 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- GLP compliance:
- not specified
- Type of method:
- differential scanning calorimetry
- Boiling pt.:
- 228 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A boiling point value of 228 °C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol.
Reference
Results of preliminary thermogravimetric measurements:
Two steps were registered with maxima at 184 °C and 201 °C. A total mass loss of 99.7 % at the final temperature could be observed, considering the initial mass loss from purging (ca.0.5 % before the start of the measurement): Mass change in the range until 192 °C: 98.0 % (97.5 % + 0.5 %); mass change in the range from 192 to 350 °C: 1.7 %.
After cooling, no residue was discernible.
Results of DSC measurements
Upon heating, the heat flow curve shows another one endothermic peak with a maximum temperature at 232 / 232 °C and an extrapolated onset temperature of 227.5 / 227.6 °C, indicating the boiling temperature at ambient pressure. Reweighing after the
measurement the sample had lost approx. 99.5 / 99.7 % of its mass. After cooling, no residue was discernible
Normal boiling point: 228 °C
Description of key information
Trichloro(4-methylphenyl)silane: 228 °C at 1013 hPa (Differential scanning calorimetry, EU method A.2)
Key value for chemical safety assessment
- Boiling point at 101 325 Pa:
- 228 °C
Additional information
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