Registration Dossier

Physical & Chemical properties

Viscosity

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Principles of method if other than guideline:
Dynamic viscosity (Ƞ) of a Newtonian solvent is generally measured by viscosimeters. Rheometers are used to measure the flow behaviour of viscous fluids, including oils.[1] In this study, Ƞ was calculated by using a rotational rheometer which has recorded changes in solvent viscosity with temperature (°C). Ƞ is measured in Pa s or mPa s (cp).

Reference:
[1] F. Souas, A. Safri, A. Benmounah, D. E. Djemiat, Petroleum Science and Technology 2018, 36, 1757-1763.
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
13.81
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
6.95

Viscosity result

Temperature [°C]

Test 1

Test 2

Test 3

Average

20

13.65

13.82

13.95

13.81

40

7.12

6.69

7.03

6.95

 

Notes:

The exact temperatures for all 3 readings are 20.04°C and 40.03°C

Conclusions:
Dynamic viscosity values of 13.81 mPa.s at 20°C and 6.95 mPa.s at 40°C were determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Viscosity: 13.81 mPa.s at 20°C and 6.95 mPa.s at 40°C (measured)

Key value for chemical safety assessment

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

Additional information

Dynamic viscosity values of 13.81 mPa.s at 20°C and 6.95 mPa.s at 40°C were determined for the substance using a relevant test method. The result is considered to be reliable.