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Physical & Chemical properties

Viscosity

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Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28-August - 29-August 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
OECD 114, non GLP. Study performed and documented equivalent to GLP standards. Study according to relevant guideline.
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
according to DIN 51 562
Deviations:
no
GLP compliance:
no
Remarks:
Study performed and documented equivalent to GLP standards.
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
3.56
Remarks on result:
other: kinematic viscosity
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
2.3
Remarks on result:
other: kinematic viscosity

The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”).

Kinematic viscosity at 20°C : 3.56 mm²/s

Kinematic viscosity at 40°C : 2.30 mm²/s

Conclusions:
The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”)
Kinematic viscosity at 20°C : 3.56 mm²/s
Kinematic viscosity at 40°C : 2.30 mm²/s
Executive summary:

The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”).

Kinematic viscosity at 20°C : 3.56 mm²/s

Kinematic viscosity at 40°C : 2.30 mm²/s

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28-August - 02-September 2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
non GLP. Study performed and documented equivalent to GLP standards. Study according to relevant guideline.
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
(according to DIN 51562)
Deviations:
no
GLP compliance:
no
Remarks:
Study performed and documented equivalent to GLP standards.
Type of method:
capillary viscometer (static)
Temp.:
20°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
6.24
Remarks on result:
other: kinematic viscosity
Temp.:
40°C
Parameter:
kinematic viscosity (in mm²/s)
Value:
3.74
Remarks on result:
other: kinematic viscosity

The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”).

Kinematic viscosity at 20°C : 6.24 mm²/s

Kinematic viscosity at 40°C : 3.74 mm²/s

Conclusions:
The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”)
Kinematic viscosity at 20°C : 6.24 mm²/s
Kinematic viscosity at 40°C : 3.74 mm²/s
Executive summary:

The kinematic viscosity of the test item was measured with a micro-Ubbelohde viscometer according to DIN 51 562 at 20°C and 40°C as preferred by the OECD Guideline 114 (“Viscosity of Liquids”).

Kinematic viscosity at 20°C : 6.24 mm²/s

Kinematic viscosity at 40°C : 3.74 mm²/s

Description of key information

No study exists for the viscosity of n-Dodecyl methacrylate.

Read across to the structural analogue individual substance i-Decyl methacrylate (IDMA) and structural analogue UVCB substance C12 -C16 methacrylate (LIMA, CAS: 90551 -76 -1):

i-Decyl methacrylate: Viscosity: 3.56 mm²/s at 20 °C, OECD 114 no GLP, experimental data (Liddiard C (2008)

C12 -C16 methacrylate (LIMA): Viscosity: 6.24 mm²/s at 20 °C, OECD 114 no GLP, experimental data (Liddiard C (2008)

Key value for chemical safety assessment

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

Additional information

No study exists for the viscosity of n-Dodecyl methacrylate.

Read across to the structural analogue individual substance i-Decyl methacrylate (IDMA) and structural analogue UVCB substance C12 -C16 methacrylate (LIMA, CAS: 90551 -76 -1):

i-Decyl methacrylate: Viscosity: 3.56 mm²/s at 20 °C, OECD 114 no GLP, experimental data (Liddiard C (2008)

C12 -C16 methacrylate (LIMA): Viscosity: 6.24 mm²/s at 20 °C, OECD 114 no GLP, experimental data (Liddiard C (2008)

Overall, the physicochemical properties of the long chain alkyl methacrylates (C12 to C22 methacrylates) are showing a regular pattern. The viscosity is increasing with increasing molecular weight/volume (i.e. alkyl ester group) within the series.

In analogy of the related UVCB substance LIMA (C12 -C16 methacrylate) the kinematic viscosity of Dodecylmethacrylate is approximately 6.24 mm²/s at 20 °C. (Liddiard C (2008)).