Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 242-472-2 | CAS number: 18643-08-8
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.