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Administrative data

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2013
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study performed according to international guidelines but not under GLP and with some lack of details.
Cross-reference
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Deviations:
not specified
GLP compliance:
no
Type of method:
rotational viscometer (dynamic)

Test material

Constituent 1
Chemical structure
Reference substance name:
α-ethyl-p-methoxybenzyl alcohol
EC Number:
226-315-5
EC Name:
α-ethyl-p-methoxybenzyl alcohol
Cas Number:
5349-60-0
Molecular formula:
C10H14O2
IUPAC Name:
1-(4-methoxyphenyl)propan-1-ol
Details on test material:
- Name of the test item (as cited in the study report): α-ETHYL-p-METHOXYBENZYL ALCOHOL
- IUPAC Name of the test item: 1-(4-methoxyphenyl)propan-1-ol
- Physical state: liquid
- Substance type: monoconstituent
- Analytical purity: 97.2%
- Purity test date: 2013-01-04
- Lot/batch No.: D61
- Expiration date of the lot/batch: January 2015
- Storage condition of test material: +2°C to +8°C, under nitrogen and protected from light


Results and discussion

Viscosityopen allclose all
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
65.5
Remarks on result:
other: shear rate = 583.1 s-1
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
16.1
Remarks on result:
other: shear rate = 583.1 s-1

Any other information on results incl. tables

Measured values at different shear rate

The results obtained at 20°C were the following:

Viscosities of the test item measured at 20°C:

Shear rate (1/s)

Viscosity (mPa.s)

 349.4

 65.00

 583.1

 65.47

 971.6

 65.45

 1610

 65.30

 349.4

 65.00

The results obtained at 40°C were the following:

Viscosities of the test item at 40°C:

Shear rate (1/s)

Viscosity (mPa.s)

349.4

16.25

583.1

16.10

971.6

16.50

1610

16.60

2705

16.80

The viscosity was constant at all shear rates at both temperatures. The test item was thus considered to be a Newtonian fluid.

Applicant's summary and conclusion

Conclusions:
The dynamic viscosity of the test item at 20°C and 40°C ranged between 1 to 100 mPa.s at a shear rate from 340 to 2705 s-1.
The test item was considered to be a Newtonian fluid.

The dynamic viscosity of p-METHOXYPROPIOPHENONE was determined to be:
- 65.5 mPa.s at 20°C ± 0.2°C at constant shear rate of 583 s-1,
- 16.1 mPa.s at 40°C ± 0.1°C at constant shear rate of 583 s-1.
Executive summary:

The determination of the viscosity was performed in accordance with OECD Guideline No 114 “Viscosity of liquids” (October 2012) and with Analytical Method DRT 5230 “Determination of dynamic viscosity with a rotary viscometer Haake VT550 or Rheolab QC”.

 

The dynamic viscosity of p-METHOXYPROPIOPHENONE was determined to be:

- 65.5 mPa.s at 20°C ± 0.2 °C at constant shear rate of 583.1 s-1

- 9.71 mPa.s at 40°C ± 1 °C at constant shear rate of 583.1 s-1

The test item was considered to be a Newtonian fluid

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