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Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
GLP compliance:
yes (incl. QA statement)
Type of method:
other: cone/plate rheometer
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 23ADB/50
- Expiration date of the lot/batch: 21/112023




Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
53.7
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
19.6
Conclusions:
Analyses with rheometer showed that, at 20°C and 40°C, under an increased shear stress the product seems not to change significantly the viscosity value (shear thickening), indicating that is a Newtonian fluid in the range tested. In these case an extrapolation of the mean viscosity value was performed to better characterize the product: 53.7 mPa*s at 20°C (RSD% = 1.3) and 19.6 mPa*s at 40°C (RSD% = 2.6).
Executive summary:

The viscosity of the test item “TRISODIUM (2S)-2.6-BIS(3-CARBOXYLATOPROPANAMIDO) HEXANOATE”: has been evaluated experimentally according to test guideline OECD 114.

Analyses with rheometer showed that, at 20°C and 40°C, under an increased shear stress the product seems not to change significantly the viscosity value (shear thickening), indicating that is a Newtonian fluid in the range tested. In these case an extrapolation of the mean viscosity value was performed to better characterize the product: 53.7 mPa*s at 20°C (RSD% = 1.3) and 19.6 mPa*s at 40°C (RSD% = 2.6).

Description of key information

Analyses with rheometer showed that, at 20°C and 40°C, under an increased shear stress the product seems not to change significantly the viscosity value (shear thickening), indicating that is a Newtonian fluid in the range tested. In these case an extrapolation of the mean viscosity value was performed to better characterize the product: 53.7 mPa*s at 20°C (RSD% = 1.3) and 19.6 mPa*s at 40°C (RSD% = 2.6).

Key value for chemical safety assessment

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

Additional information

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