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Physical & Chemical properties

Viscosity

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Reference
Endpoint:
viscosity
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Well conducted study according to OECD guideline under Internal management system, certificate of analysis included in the report.
Qualifier:
according to
Guideline:
OECD Test Guideline 114 (Viscosity of Liquids)
Version / remarks:
Adopted May 12, 1981
Deviations:
no
GLP compliance:
no
Remarks:
Internal management system
Type of method:
rotational viscometer (dynamic)
Key result
Temp.:
20°C
Parameter:
dynamic viscosity (in mPa s)
Value:
7.5

The rheometer was calibrated at 13-12-2011.
A calibration check was performed prior to the measurement . The estimated accuracy is ± 1%.

Viscosity measurement of the REACH test substance, batch no. 0906225400

replicate

Temperature, °C

rpm

result 1, mPas

result 2, mPas

average, mPas

1

20

12

7.49

7.51

7.50

2

20

30

7.49

7.51

7.50

As there was no effect due to shear rate, the average viscosity value can be set at 7.50 mPa.s at 30 rpm (20°C).

Conclusions:
The viscosity of tert-butyl peroxybenzoate is 7.50 mPas.
Executive summary:

The viscosity of tert-butyl peroxybenzoate(CAS614-45-9)was determined according to OECD Guideline 114, and in accordance with European Chemicals Agency (ECHA), Guidance on information requirements and chemical safety assessment, Chapter R.7a, Endpoint specific guidance, May 2008.

 

The viscosity of the test substance is:

 

temperature, °C

rpm

average viscosity, mPas

20

12

7.50

20

30

7.50

Description of key information

The viscosity of tert-butyl peroxybenzoate is 7.50 mPas.

Key value for chemical safety assessment

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

Additional information

This data is supported by;

614-45-9, Viscosity, AN-data

The viscosity of tert-butyl peroxybenzoate is 6 mPa s (dynamic) at 20°C.