O,O-tert-butyl isopropyl monoperoxycarbonate

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

Date 21 August 1991

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Remarks:

No OECD guidelines, DSC method used for reactive organic peroxides

Principles of method if other than guideline:

DSC

Type of method:

other: DSC

Key result

Test no.:

#1

Temp.:

22 °C

Vapour pressure:

0.6 mBar

Sample	Vapour pressure at drying temperature	Temperature at which vapour pressure is at 1 mbar
BPIC	0.6 mbara at 22°C	29 °C

The experiments are carried out at relatively high temperature, this to create the desired vapour pressure of the peroxides. In the DSC, operating with samples of 15 mg and a heating rate of 5°C/min, such temperatures are no problem.

Conclusions:

The vapour pressure of Trigonox BPIC was found to be 0.6 mbar (60 Pa) at 22°C.

Executive summary:

1. Vapour pressure of 7 peroxides are determined in the region of 3 up to 40 mbara.

2. Two reference samples are investigated to prove the applicability of the method.

3. The experimental data is used to calculate the saturated vapour pressure at the drying temperature.

4. The vapour pressure of Trigonox BPIC was found to be 0.6 mbar (60 Pa) at 22°C.

5. The temperature at which the vapour pressure of Trigonox BPIC is 1 mbar is 29 °C.

Description of key information

The measured vapor pressure of tert-butylperoxy isopropyl carbonate is 60 Pa @ 22 oC

Key value for chemical safety assessment

Vapour pressure:

60 Pa

at the temperature of:

22 °C