Dodecyl methacrylate

Viscosity

Link to relevant study record(s)

Reference

Reference 1

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

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)

Specific details on test material used for the study:

- Name of test material (as cited in study report): Isodecyl methacrylate
- Substance type: organic
- Physical state at room temperature: liquid

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

Reference 2

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

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)

Specific details on test material used for the study:

- Name of test material (as cited in study report): Methacrylic acid ester of aliphatic alcohols C12-C16
- Substance type: organic
- Physical state at room temperature: liquid

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)).