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Physical & Chemical properties

Vapour pressure

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Administrative data

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2017-08-23 to 2017-10-10
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: NF T 20-048
Deviations:
no
GLP compliance:
no
Other quality assurance:
other: Test performed under quality system ISO 9001.
Type of method:
static method
Specific details on test material used for the study:
Batch No.: 1504501023
Purity: 70 % Disuccinoyl peroxide, 30 % water
Key result
Temp.:
20 °C
Vapour pressure:
2.34 kPa
Temp.:
25 °C
Vapour pressure:
3.17 kPa

The vapour pressure of the test item corresponds exactly with the vapour pressure of water. So the vapour pressure of the test item was set as the vapour pressure for water. These vapour pressures were corrected to the calibration. The temperature range for the vapour pressure of the test item was limited in the range of 20 to 25 °C.

Table 1. Vapour pressure after correction

Temperature (°C)

Pressure (mBarA)

Pressure (kPa)

20

25

23.4

31.7

2.34

3.17

Conclusions:
The vapour pressure was determined to be 2.34 kPa at 20 °C and 3.17 kPa at 25 °C, respectively.
Executive summary:

The vapour pressure of the test item was determined according to EC Regulation No. 440/2008, method A.3 and OECD 109 using the static method. The vapour pressure was calculated to be 2.34 kPa at 20 °C and 3.17 kPa at 25 °C, respectively.

Description of key information

The vapour pressure was determined to be 2.34 kPa at 20 °C and 3.17 kPa at 25 °C, respectively.

Key value for chemical safety assessment

Vapour pressure:
2.34 kPa
at the temperature of:
20 °C

Additional information

The vapour pressure of the test item was determined according to EC Regulation No. 440/2008, method A.3 and OECD 109 using the static method. The vapour pressure was calculated to be 2.34 kPa at 20 °C and 3.17 kPa at 25 °C, respectively.