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Physical & Chemical properties

Viscosity

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Endpoint:
viscosity
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
2011
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Justification for type of information:
QSAR prediction
Principles of method if other than guideline:
The result was obtained using an appropriate QSAR method (see attached QMRF and QPRF for details).
GLP compliance:
no
Type of method:
other: QSAR Method Reporting Format
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
0.76
Conclusions:
The static viscosity of the test substance was calculated to be 0.87 mm²/s at 20°C.
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2011
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Qualifier:
equivalent or similar to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
DIN 51562
Deviations:
not specified
GLP compliance:
not specified
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
0.61
Conclusions:
A dynamic viscosity value of 0.61 mPa.s at 20 °C is reported in secondary literature (MSDS). The original reference was not available for review and no further information is available. The reliability of this result is not assignable.

Description of key information

Viscosity (triethoxysilane): 0.76 mm²/s at 20°C (QSAR).

Key value for chemical safety assessment

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

Additional information

The static viscosity of the test substance was calculated to be 0.76 mm²/s at 20 °C. This data was calculated according to an appropriate QSAR estimation method. The result is considered reliable and is selected as key study. This is also supported by a further study which reported the dynamic viscosity to be 0.61 mPa.s at 20 °C. Limited details were available for this study and so it is selected as a supporting study.