Reaction mass of potassium trifluoroacetate and potassium trifluoromethanesulphinate

Viscosity

Link to relevant study record(s)

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.