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Vapour pressure

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Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 May 2017 to 12 May 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: vapour pressure balance
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
1.87 Pa
Remarks on result:
other: equivalent to 298 K
Key result
Test no.:
#2
Temp.:
40 °C
Vapour pressure:
1.12 Pa
Remarks on result:
other: equivalent to 313 K
Key result
Test no.:
#3
Temp.:
70 °C
Vapour pressure:
0.921 Pa
Remarks on result:
other: equivalent to 343 K

RESULTS

- The vapour pressure result from the preliminary run was reported as 2.62 Pa at 20°C (293.15 K).

- The direct values of the vapour pressure at 25 °C are shown in Table 3 and Figure 2 (attached).

- The direct values of the vapour pressure at 40 °C are shown in Table 4 and Figure 3 (attached).

- The direct values of the vapour pressure at 70 °C are shown in Table 5 and Figure 4 (attached).

Conclusions:
The vapour pressure of the test item was determined to be 1.87 Pa at 25 °C (298 K), 1.12 Pa at 40 °C (313 K) and 0.921 Pa at 70 °C (343 K).
Executive summary:

GUIDELINE

The determination was carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

 

RESULTS

The vapour pressure of the test item was determined to be 1.87 Pa at 25 °C (298 K), 1.12 Pa at 40 °C (313 K) and 0.921 Pa at 70 °C (343 K).

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
25 January 2017 to 27 January 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: vapour pressure balance
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
23.7 Pa
Remarks on result:
other: equivalent to 298 K
Key result
Test no.:
#2
Temp.:
40 °C
Vapour pressure:
16.1 Pa
Remarks on result:
other: equivalent to 313 K
Key result
Test no.:
#3
Temp.:
70 °C
Vapour pressure:
18.8 Pa
Remarks on result:
other: equivalent to 343 K

RESULTS

- Results from the preliminary run at 21 to 41°C are given in Table 1 (attached).The preliminary run self-terminated at 41 °C due to the mass difference exceeding the programmed 1500μg threshold.

- A graph of preliminary vapour pressure data is shown in Figure 2 (attached).

- The direct values of the vapour pressure at 25 °C are shown in Table 2 and Figure 3 (attached).

- The direct values of the vapour pressure at 40 °C are shown in Table 3 and Figure 4 (attached).

- The direct values of the vapour pressure at 70 °C are shown in Table 4 and Figure 5 (attached).

Conclusions:
The vapour pressure of the test item was determined to be 23.7 Pa at 25 °C (298 K), 16.1 Pa at 40 °C (313 K) and 18.8 Pa at 70 °C (343 K).
Executive summary:

GUIDELINE

The determination was carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

 

RESULTS

The vapour pressure of the test item was determined to be 23.7 Pa at 25 °C (298 K), 16.1 Pa at 40 °C (313 K) and 18.8 Pa at 70 °C (343 K).

Description of key information

The vapour pressure of the research material was determined to be 1.87 Pa at 25 °C (298 K), 1.12 Pa at 40 °C (313 K) and 0.921 Pa at 70 °C (343 K) and vapour pressure of the manufactured product was determined to be 23.7 Pa at 25 °C (298 K), 16.1 Pa at 40 °C (313 K) and 18.8 Pa at 70 °C (343 K) (OECD 104 and EU Method A.4).

Key value for chemical safety assessment

Vapour pressure:
23.7 Pa
at the temperature of:
25 °C

Additional information

GUIDELINE

The determinations were carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

 

RESULTS

The vapour pressure of the research material was determined to be 1.87 Pa at 25 °C (298 K), 1.12 Pa at 40 °C (313 K) and 0.921 Pa at 70 °C (343 K) and vapour pressure of the product as manufactured was determined to be 23.7 Pa at 25 °C (298 K), 16.1 Pa at 40 °C (313 K) and 18.8 Pa at 70 °C (343 K).