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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Partition coefficient

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Administrative data

Endpoint:
partition coefficient
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification
Justification for type of information:
Episuite is a well known QSAR software package that is widely used and accepted by both industry and regulatory authorities.

Trimethylvinylsilane is considered to be inside the applicability domain of the EpiSuite WSKOW model since the following criteria are fulfilled (as described in the model's manual):
- The molecular weight of trimethylvinylsilane is within the molecular weight range of the training set
- Trimethylvinylsilane is within the log Kow range of the training set
- All functional groups present in trimethylvinylsilane are represented in the training set and have a fragment coefficient available

Data source

Reference
Reference Type:
other: QSAR
Title:
WSKOWWIN v.1.41
Author:
EPA’s Office of Pollution Prevention Toxics and Syracuse Research Corporation.
Year:
2000
Bibliographic source:
http://www.epa.gov/opptintr/exposure/pubs/episuite.htm

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
QSAR calculation based on the "fragment constant" methodology.
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Trimethylvinylsilane
EC Number:
212-042-9
EC Name:
Trimethylvinylsilane
Cas Number:
754-05-2
Molecular formula:
C5H12Si
IUPAC Name:
trimethylvinylsilane

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
3.07
Remarks on result:
other: Note: Temperature and pH not applicable as it concerns a QSAR calculation.

Applicant's summary and conclusion

Conclusions:
Log Kow: 3.07
The partition coefficient was calculated by means of EpiSuite's WSKOW model.
Executive summary:

The partition coefficient was retrieved from EpiSuite's WSKOW model and the Log Kow found to be 3.07.

Trimethylvinylsilane is considered to be inside the applicability domain of the EpiSuite WSKOW model since the following criteria are fulfilled:

- The molecular weight of trimethylvinylsilane is within the molecular weight range of the training set.

- Trimethylvinylsilane is within the log Kow range of the training set.

- All functional groups present in trimethylvinylsilane are represented in the training set and have a fragment coefficient available.