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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 12 Oct 2012 to 07 Dec 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Not GLP study but following the standard recognized guidelines.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
no
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2.07
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
1.41

The results of the dynamic viscosity measurements are explained as a function of the shear rate. The mobile SC4-21 was chosen.

Conclusions:
The mean dynamic viscosity of the test item at 20.0 ± 0.2 °C was 2.07 mPa.s.
The mean dynamic viscosity of the test item at 40.0 ± 0.2 °C was 1.41 mPa.s.
Executive summary:

In this study (2012), the determination of the dynamic viscosity of the reaction mass of potassium trifluoromethanesulphinate (TFSK) and potassium trifluoroacetate (TFAK) in aqueous solution (approximately 36%) was performed according to the guideline OECD 114.

The mean dynamic viscosity of the test item at 20.0 ±0.2°C was 2.07 mPa.s.

The mean dynamic viscosity of the test item at 40.0 ±0.2°C was1.41 mPa.s.

Taking into account the results obtained at 20.0 and 40.0 °C, the test item in aqueous solution (approximately 36%) was considered to have newtonian properties in the experimental conditions used.

Description of key information

The result of the chemical reaction of the manufacturing process is a solution of approximately 36% of two constituents in water. An experimental study performed on this aqueous solution gave a viscosity of 2.07 mPa.s at 20°C.

Key value for chemical safety assessment

Viscosity:
2.07 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information

In a reliable study, the determination of the dynamic viscosity of the aqueous solution (approximately 36%) of the reaction mass of potassium trifluoromethanesulphinate (TFSK) and potassium trifluoroacetate (TFAK) was performed according to the guideline OECD 114.

The mean dynamic viscosity of the test item at 20.0 ±0.2°C was 2.07 mPa.s.

The mean dynamic viscosity of the test item at 40.0 ±0.2°C was1.41 mPa.s.

Taking into account the results obtained at 20.0 and 40.0 °C, the test item was considered to have Newtonian properties in the experimental conditions used.