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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
June 2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Calculation based on vapour pressure measurements which were carried out in the past.
Qualifier:
no guideline followed
Principles of method if other than guideline:
calculation with known data.
GLP compliance:
no
Type of method:
other: calculation
Temp.:
25 °C
Vapour pressure:
< 0.01 Pa
Remarks on result:
other: in the range of 1*10-11 to 1*10-16Pa

Discussion

Three methods are applied to estimate the vapour pressure of Perkadox 24:

1.The ACD/Labs calculation method: Pvap= 8.5*10-12Pa at 25 °C.

2.DSC method: Pvap< 10 Pa at 25 °C. 

3.From the relation between vapour pressure and mol weight: Pvapin the range of 1*10-11to 1*10-16Pa at 25 °C.

 

Based on these three results one can conclude that the vapour pressure of Perkadox 24 at 25°C will most likely be around 1*10-11Pa.

The vapour pressure of Perkadox 24 at 25°C will surely be below 0.01 Pa.

 

Conclusions:
The vapour pressure of dihexadecyl peroxodicarbonate at 20°C is far below 0.01 Pa.
Executive summary:

The vapour pressure of dihexadecyl peroxodicarbonate at 20°C is far below 0.01 Pa.

This conclusion is derived from extrapolation from data from experiments from the past.

Description of key information

The vapour pressure of dihexadecyl peroxodicarbonate at 20°C is far below 0.01 Pa.

Key value for chemical safety assessment

Additional information

This is supported by:

26322-14-5, Vapour pressure, Nuysink , 2006, SS

The vapour pressure of dihexadecyl peroxodicarbonate is < 0.1mBar (<10 Pa) at 25°C.