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Physical & Chemical properties

Viscosity

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From July 23rd to July 27th 2015
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:
forced ball viscometer (dynamic)
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
18 041.539
Remarks on result:
other: Mean of 6 single determination
Temp.:
40°C
Parameter:
dynamic viscosity (in mPa s)
Value:
2 577.658
Remarks on result:
other: Mean of 6 single determination
Conclusions:
The viscosity of DIACID 1550 was determined as 18041.539 ± 80.856 mPa * s at 20.00 ± 0.04 °C and as 2577.658 ± 20.221 mPa * s at 40.0 ± 0.1 °C. Both values are the means of two triplicate determinations ± standard deviation for each temperature.
As the measured RSDs were 0.45 % for the determination at 20 °C and 0.78 % for the determination at 40 °C, the validity criteria for ball no. 6 respectively no. 5 were met for both determinations. Measurements were performed at 20.00 ± 0.04 °C respectively 40.0 ± 0.1 °C.
No observations arousing doubts concerning the accuracy of the results and the validity of the study were made.
Executive summary:

Using a rolling ball viscosimeter, viscosities of 18041.539 ± 80.856 mPa * s at 20.00 ± 0.04 °C and 2577.658 ± 20.221 mPa * s at 40.00 ± 0.1 °C were measured. Both values are the means of two independent triplicate determinations (each) ± standard deviation. Good correlation of the two determinations was given (relative standard deviation was 0.45 % resp. 0.78 %).

Description of key information

Dynamic viscosity at 20 °C (OECD 114 study) : 18041.539 ± 80.856 mPa*s
Dynamic viscosity at 40 °C (OECD 114 study) : 2577.658 ± 20.221 mPa*s

Key value for chemical safety assessment

Viscosity:
18 041.539 mPa · s (dynamic)
at the temperature of:
20 °C

Additional information