(tetrapropenyl)succinic acid

Viscosity

Link to relevant study record(s)

Reference

Endpoint:

viscosity

Type of information:

experimental study

Adequacy of study:

key study

Study period:

7th January 2019 - 15th January 2019

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:

Rotational viscometry

Deviations:

no

Principles of method if other than guideline:

The test item was tested in the container it was supplied in, due to its high viscosity. This was in deviation to the protocol which stated that the test item would be poured into a measuring cup. Since the instrument manufacturer states that testing of fluids >30,000 mPa.s can be tested in their container, and that the viscosity calibration standard check was successful in a container of similar, but smaller dimensions to that of the test item – this deviation is not considered to impact the integrity of the result obtained.

GLP compliance:

yes

Type of method:

rotational viscometer (dynamic)

Standard covering the apparatus used:

The viscosity was measured using a Brookfield Digital Viscometer, Model LVDV-I+ with spindle LV4.

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Lot/batch No.of test material: E01209-198
- Expiration date of the lot/batch: 05-Sept-2020

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

ca. 43 702

Temp.:

20°C

Parameter:

dynamic viscosity (in mPa s)

Value:

1 282 000

Temp.:

20°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 1 291 818

Key result

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

ca. 44 037

Test	Viscosity (mPa.s)
	20°C	40°C
Ascending	-	43,625
Descending	-	43,779
Mean	1,282,000	43,702

The kinematic viscosity was calculated from the mean dynamic viscosity measured at each temperature as follows:

kinematic viscosity (mm2/s) = dynamic viscosity (mPa.s) / density (g/m3)

Test Substance	Kinematic Viscosity (mm^2/s)
	20°C	40°C
EXP 1504386	1,291,818	44,037

Conclusions:

The mean viscosity of the test item was determined using rotational viscometry in accordance with OECD 114 and the results were as follows:
Dynamic Viscosity at 40 degrees Celsius: 43,702 mPa s
Dynamic Viscosity at 20 degrees Celsius: 1,282,000 mPa s
Kinematic Viscosity at 20 degrees Celsius: 1,291,818 mm2/s
Kinematic Viscosity at 40 degrees Celsius: 44,037 mm2/s

Executive summary:

The mean viscosity of the test item was determined using rotational viscometry in accordance with OECD 114 and the results were as follows:

Dynamic Viscosity at 40 degrees Celsius: 43,702 mPa s

Dynamic Viscosity at 20 degrees Celsius: 1,282,000 mPa s

Kinematic Viscosity at 20 degrees Celsius: 1,291,818 mm2/s

Kinematic Viscosity at 40 degrees Celsius: 44,037 mm2/s

Description of key information

The mean viscosity of the test item was determined using rotational viscometry in accordance to OECD 114.

Key value for chemical safety assessment

Viscosity:

44 037 mm²/s (static)

at the temperature of:

40 °C

Additional information

The viscosity of the test material was investigated in a study which was performed under GLP conditions and in accordance with the standardised guideline OECD 114.The study was assigned a reliability score of 1 in accordance with the criteria for assessing data quality set forth by Klimisch et al. (1997).

The dynamic viscosity was measured using a Brookfield Digital Viscometer. The test item was tested at 20°C and 40°C. The kinematic viscosity is calculated from the mean dynamic viscosity measured at each temperature:

Kinematic viscosity at 20 degrees Celsius: 1,291,818 mm2/s

Kinematic viscosity at 40 degrees Celsius: 44,037 mm2/s