Registration Dossier

Physical & Chemical properties


Currently viewing:

Administrative data

Link to relevant study record(s)

Type of information:
Adequacy of study:
key study
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:
See attached QMRF/QPRF
Principles of method if other than guideline:
The result was obtained using an appropriate QSAR method (see attached QMRF and QPRF for details).

The model for viscosity has been developed for, and applies specifically to methoxysilane compounds. It is a linear regression based model with the normal boiling point of the substance as the single descriptor.
Key result
kinematic viscosity (in mm²/s)
Viscosity values of 3.2 mm²/s (static) at 20°C was obtained for the substance using an accepted calculation method. The result is considered to be reliable.

Description of key information

Viscosity: 3.2 mm2/s at 20°C (QSAR)

Key value for chemical safety assessment

3.2 mm²/s (static)
at the temperature of:
20 °C

Additional information

A predicted kinematic viscosity value of 3.2 mm2/s at 20°C was obtained for the submission substance using a validated QSAR estimation method. The result is considered to be reliable and is selected as key study.

In available secondary sources to which reliability cannot be assigned, a dynamic viscosity value of 2.8 mPa·s at 20°C (equivalent to 2.7 mm2/s static) and a kinematic viscosity value of 2.5 mm2/s at 25°C were reported for the substance.