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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
16-Feb-2010 to 13-Apr-2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
The viscosity was determined, using a procedure specified in Method 114 of the OECD Guidelines for Testing of Chemicals, 12 May 1981.
Deviations:
no
Remarks:
EXAMPLE
GLP compliance:
yes (incl. certificate)
Remarks:
Date of Signature on GLP certificate: November 12, 2008
Type of method:
rotational viscometer (dynamic)
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
5.84
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
9.97

Table 2       Determination of the Physico-Chemical Property „Viscosity“ of the Test Item: Resultsat 20°C

Temperature

 

Shear Stress

 

Dynamic Viscosity

1stMeasurement

2ndMeasurement

[°C]

[s-1]

[mPa·s]

[mPa·s]

20

1060

10.720

/

1130

11.000

10.250

1200

10.720

10.050

1270

10.300

9.681

1340

10.330

9.723

1410

10.330

9.507

1490

10.260

9.543

1560

10.400

9.477

1630

10.230

9.553

1700

10.100

9.422

1770

10.130

9.441

1840

10.040

9.431

1910

10.040

9.441

1980

10.080

9.413

2050

10.180

9.274

Mean value (calculated from the bold values):

9.968

 

 

Table 3       Determination of the Physico-Chemical Property „Viscosity“ of the Test Item: Results at 40 °C

Temperature

 

Shear Stress

 

Dynamic Viscosity

3rdMeasurement

4thMeasurement

[°C]

[s-1]

[mPa·s]

[mPa·s]

40

1840

/

5.964

1910

5.744

5.873

1980

5.789

5.907

2050

5.823

5.775

Mean value (calculated from the bold values):

5.839

 

Conclusions:
The viscosity of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 decreases with increasing temperature from 9.97 mPa•s at 20 °C to 5.84 mPa•s at 40 °C. The viscosity does not depend on the shear rate. It can be stated, that Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 is a Newtonian fluid.
Executive summary:

The viscosity of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 was determined at 20 °C and 40 °C according to the OECD Method No. 114 using a rotating cylinder viscosimeter.

 

The viscosity values did not vary with the shear rate within the limits of accuracy of the instrument. This indicates that Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 is a Newtonian fluid. Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 has a viscosity of 9.97 mPa·s at 20 °C and 5.84 mPa·s at 40 °C.

Description of key information

The viscosity of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 decreases with increasing temperature from 9.97 mPa•s at 20 °C to 5.84 mPa•s at 40 °C. The viscosity does not depend on the shear rate. It can be stated, that Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 is a Newtonian fluid.

Key value for chemical safety assessment

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

Additional information