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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2020
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2020
Report date:
2021

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
yes (incl. QA statement)
Type of method:
capillary viscometer (static)

Test material

Constituent 1
Chemical structure
Reference substance name:
γ-valerolactone
EC Number:
203-569-5
EC Name:
γ-valerolactone
Cas Number:
108-29-2
Molecular formula:
C5H8O2
IUPAC Name:
5-methyloxolan-2-one

Results and discussion

Viscosityopen allclose all
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2
Key result
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
1.425

Any other information on results incl. tables

Viscosity determination of the test item at 20 °C

























 kinematic viscosity [mm2/s]dynamic viscosity *) [mPa*s]
1st determination1.90872.0121
2nd determination1.88521.9873
mean value1.896951.9997

*) calculated with a density of the test item of p = 1. 054164 g/cm3


 


Viscosity determination of the test item at 40 °C

























 kinematic viscosity [mm2/s]dynamic viscosity *) [mPa*s]
1st determination1.38561.4346
2nd determination1.36681.4152
mean value1.37621.4249

*) calculated with a density of the test item of p = 1. 035390 g/cm3
The estimated accuracy is ± 2 %.

Applicant's summary and conclusion