Phosphonic acid, mixed C12-20-alkyl and C14-18-unsatd. alkyl derivs.

Viscosity

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:

other: Determination according to appropriate guideline standards, non-GLP, low level of detail reported

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

other: ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque liquids

Deviations:

no

GLP compliance:

no

Type of method:

capillary viscometer (static)

Temp.:

40°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

21.02

Remarks on result:

other: Run ID TRN6G0M0C, centistokes = mm²/s, corresponds to 0.000,021,02 m²/s

Temp.:

40°C

Parameter:

dynamic viscosity (in mPa s)

Value:

19.13

Remarks on result:

other: Calculated by multiplying the static (kinematic) viscosity of 0.000,021,02 m²/s by the density of 910 kg/m³ = 0.019,128,2 Kg/(m∙s) or Pa∙s

Temp.:

other: 100.0°C

Parameter:

kinematic viscosity (in mm²/s)

Value:

5.373

Remarks on result:

other: Run ID TRN19514B, centistokes = mm²/s, corresponds to 0.000,005,373 m²/s

Temp.:

other:

Parameter:

dynamic viscosity (in mPa s)

Value:

4.914

Remarks on result:

other: Calculated by multiplying the static (kinematic) viscosity of 0.000,005,373 m²/s by the density of 910 kg/m³ = 0.004,914 Kg/(m∙s) or Pa∙s

Conclusions:

Static (kinematic) viscosity 212 and 5.4 mm²/s and dynamic (absolute) viscosity 19 and 4.9 mPa ∙ s at 40 and 100 °C, respectively

Executive summary:

The static (kinematic) viscosity of the test item was determined at 40 and 100 °C according to the ASTM D445 protocol (non-GLP). The company data are considered adequate, sufficiently documented and valid for assessment. The applied test protocol specifies a procedure for the determination of the kinematic viscosity, of liquid petroleum products, both transparent and opaque, by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer.

The dynamic (absolute) viscosity can be obtained by multiplying the static (kinematic) viscosity by the density of the liquid.

The static (kinematic) viscosity was determined to be 21 and 5.4 mm²/s or centistokes at 40 and 100 °C respectively. The conversion using the density value of 910 kg/m³ reveals the dynamic (absolute) viscosity to be 19 and 4.9 mPa∙s at 40 and 100 °C, respectively.

Description of key information

Rapid penetration into soil unlikely, data at elevated temperature: Static (kinematic) viscosity 212 and 5.4 mm²/s and dynamic (absolute) viscosity 19 and 4.9 mPa∙s at 40 and 100 °C, respectively

Key value for chemical safety assessment

Viscosity:

4.9 mPa · s (dynamic)

at the temperature of:

40 °C

Additional information

Experimental company data on the viscosity of the submission item are available. The static (kinematic) viscosity has been determined at 40 and 100 °C according to the ASTM D445 protocol (non-GLP). The conversion to the dynamic (absolute) was made by multiplication with the density value 910 kg/m³ from Fox & White (2012, Harlan Report no. 41103263).

The standard testing requirement has been adapted in accordance with REACH Annex XI, 1.1.1 (Official Journal of the European Union 30.12.2006, p L 396/371) as the existing measurement seems adequate, sufficiently documented and valid. Measurement according to OECD TG 114 (1981) at 20 °C seems technically not feasible due to the viscous state of the submission item at this temperature. Thus such determination could be waived in accordance with Annex XI, 2 (Official Journal of the European Union 30.12.2006, p L 396/378) as measurement in accordance with the method is technically not feasible. The submission item is considered to behave at environmental conditions comparable to a solid with the consequence that rapid penetration into the soil is not probable.