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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14-Jul-2015
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Qualifier:
according to
Guideline:
other: DIN 51562
GLP compliance:
no
Type of method:
other: Ubbelohde viscosimeter
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
1.83

Results

Test: 1

Capillary tube: 0a

Correction factor 0.004936

Measured time [s]

Mean value (s)

373

369

384

370

379

375

 

Calculation

Viscosity (mm2/s)

time (mean value) x correction factor = viscosity

1.8510

 

Test: 2

Capillary tube: I

Correction factor 0.009678

Measured time [s]

Mean value (s)

187

187

187

187

187

187

 

Calculation

Viscosity (mm2/s)

time (mean value) x correction factor = viscosity

1.8098

 

Final result

Viscosity at 20 °C (mm2/s) = 1.83

Conclusions:
A static viscosity of 1.83 mm²/s at 20 °C was determined in a reliable study conducted according to an appropriate test protocol. It was not compliant with GLP.

Description of key information

Triethoxy(phenyl)silane: 1.83 mm²/s at 20 °C (measured)

Key value for chemical safety assessment

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

Additional information

A static viscosity of 1.83 mm2/s at 20 °C was determined according to DIN 51562. This is supported by a measured value of 1.6 mPa s at 25°C from a secondary source (company data). The supporting result is in good agreement with the key study.