Registration Dossier
Registration Dossier
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EC number: 242-472-2 | CAS number: 18643-08-8
Flash point
Administrative data
Link to relevant study record(s)
- Endpoint:
- flash point of flammable liquids
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 09-Jun-2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.9 (Flash-Point)
- Qualifier:
- according to guideline
- Guideline:
- ISO 2719 (Determination of flash point - Pensky-Martens closed cup method)
- GLP compliance:
- no
- Type of method:
- equilibrium method
- Flash point:
- > 110 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A flash point value of > 110 °C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.
- Endpoint:
- flash point of flammable liquids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 09-Jun-2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- At standard conditions (20 °C) the test substance is solid. The melting temperature is 25.7°C, therefore the flash point test is considered valid.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.9 (Flash-Point)
- GLP compliance:
- no
- Type of method:
- closed cup
- Flash point apparatus:
- Pensky-Martens apparatus
- Flash point:
- 114 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A flash point value of 114°C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.
Referenceopen allclose all
Calculation
Determination of the corrected flash-point: TC = T0 + 0.25 x (101.3 – p)
TC = corrected flash point to the standard atmospheric pressure (101.3 kPa)
T0 = measured flash point at actual atmospheric pressure
p = actual atmospheric pressure [kPa]
Results
Test |
Temperature [°C] |
Result yes(+) / no(-) |
1 |
70 |
- |
2 |
80 |
- |
3 |
90 |
- |
4 |
95 |
- |
5 |
100 |
- |
6 |
105 |
- |
7 |
110 |
- |
Test series |
Measured value [°C] |
Corrected value [°C] |
1 |
> 110 [°C] |
> 110 [°C] |
Remarks
At standard conditions (20 °C) the test substance is solid. The melting temperature is 25.7°C (see Wacker Final Report N-0002134136-P). Therefore the solid test substance is first heated above the melting temperature and then applied as liquid for the flash point test.
Calculation
Determination of the corrected flash-point: Tc= T0+ 0.25 x (101.3 – p)
TC = corrected flash point to the standard atmospheric pressure (101.3 kPa)
T0 = measured flash point at actual atmospheric pressure
p = actual atmospheric pressure [kPa]
Results
Test |
Measured value (°C) |
Corrected value (°C) |
Preliminary test |
- |
- |
1 |
112.3 |
113.4 |
2 |
113.0 |
114.1 |
Mean value* |
114.0 |
|
* The mean value is calculated from test 1 and 2 and rounded to +/-0.5°C
At standard conditions (20 °C) the test substance is solid. The melting temperature is 25.7°C (see Wacker Final Report N-0002134136-P). Therefore the solid test substance is first heated above the melting temperature and then applied as liquid for the flash point test.
Description of key information
Chlorodimethyloctadecylsilane: 114.0°C at 1013 hPa (EU Method A.9)
Key value for chemical safety assessment
- Flash point at 101 325 Pa:
- 114 °C
Additional information
A flash point value of 114.0°C at 1013 hPa was determined using Pensky-Martens apparatus (closed cup) according to EU test method A.9. This is supported by a measured value of >110°C at 1013 hPa determined using the equilbrium method according to EU test method A.9.
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