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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
03 August 2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
October 2012
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7100 (Viscosity)
Version / remarks:
August 1996
Deviations:
no
GLP compliance:
yes
Type of method:
capillary viscometer (static)
Key result
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
6.71
Key result
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
3.25

Test results at 20°C: 6.71 and 6.72 mm^2/s

Test results at 40°C: 3.24 and 3.25 mm^2/s

Conclusions:
The kinematic viscosity of the test item at 20°C and 40°C was 6.71 mm2/s and 3.25 mm2/s, respectively.
Executive summary:

The kinematic viscosity of Tetramethylammonium hydroxide 35% in water was determined using the capillary viscometer method in a GLP study according to OECD 114 and OPPTS 830.7100

The kinematic viscosity at 20°C and 40°C was determined in duplicate obtaining the mean values of 6.71 mm^2/s and 3.25 mm^2/s, resp.

Description of key information

Kinematic viscosity at 20°C: 6.71 mm2/s

Kinematic viscosity at 40°C: 3.25 mm2/s

Key value for chemical safety assessment

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

Additional information

Method used: capillary viscometer (OECD 114, OPPTS 830.7100)