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Physical & Chemical properties

Density

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Description of key information

Using the pycnometer method, the density of tert-Butylperoxyisobutyrate (TBPIB) 75 % in isododecane was determined to be 0.861 g/cm³ at 20 ± 0.2 °C. 

Key value for chemical safety assessment

Relative density at 20C:
0.861

Additional information

A study was conducted in equivalence to Regulation (EC) No 440/2008 method A.3. The density of the test substance tert-Butylperoxyisobutyrate (TBPIB) 75 % in isododecane was measured by a 25 mL pycnometer at temperature of 20 + /- 0.2°C. The calculated result obtained indicated of a density of 0.861 g/cm³ for TBPIB.