Registration Dossier

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

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of the test item (as cited in the study report): p-METHOXYPROPIOPHENONE
- IUPAC Name of the test item: 1-(4-methoxyphenyl)propan-1-one
- Substance type: monoconstituent
- Physical state: liquid
- Analytical purity: 88.0%
- Purity test date: 2013-01-18
- Lot/batch No.: LABD40 du 17/01/2013
- 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:
24.1
Remarks on result:
other: shear rate = 583.1 s-1
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
9.71
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)
 583.1  24.13
 971.6  23.95
 1610  23.35
 2705  22.95

The results obtained at 40°C were the following:

Viscosities of the test item at 40°C:

Shear rate (1/s)  Viscosity (mPa.s)
 583.1 9.71
 971.6  9.67
 1610  9.70
 2705  9.81

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 583 to 2705 s-1.
The test item was considered to be a Newtonian fluid.

The dynamic viscosity of p-METHOXYPROPIOPHENONE was determined to be:
- 24.1 mPa.s at 20°C ± 0.2°C at constant shear rate of 583 s-1,
- 9.71 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:

- 24.1 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