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Physical & Chemical properties

Vapour pressure

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Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 12 January 2011 to 17 January 2011
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
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance
Temp.:
25 °C
Vapour pressure:
0.25 Pa

 Run  Log10[Vp(25ºC)]
 1  -0.499
 2  -0.521
 3  -0.544
 4  -0.574
 5  -0.585
 6  -0.614
 7  -0.644
 8  -0.663
 9  -0.701
 10  -0.707
 Mean  -0.605
 Vapour Pressure  0.25 Pa
Conclusions:
The vapor pressure of the test material has been determined to be 0.25 Pa at 25ºC
Executive summary:

The test procedure was Method A4 Vapour Pressure of Commission Regulation (EC). The test material has been determined to have a vapour pressure of 0.25 Pa at 25ºC, using a vapour pressure balance.

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
From 17 January 2003 to 23 February 2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
isoteniscope
Temp.:
ca. 25 °C
Vapour pressure:
ca. 2 200 Pa
Remarks on result:
other: It is intended to repeat the experimental vapor pressure study. The CSA will be revised if the experimentally determined value deviates significantly from the calculated value.

Run 1
LHS Column (cmHg) RHS Column (cmHg) Temperature (ºC) Log10Vp
74,7 3,4 107,5 4,97
72,8 5,3 105,7 4,95
71,1 7 104,2 4,93
69,4 8,8 102,6 4,91
67,9 10,3 101,3 4,88
66,5 11,8 100,3 4,86
65,6 12,7 99,4 4,84
64,6 13,7 98,6 4,83
63,7 14,6 97,4 4,81
62,5 15,9 95,4 4,79
61,5 16,8 94,5 4,77
60,7 17,7 93,7 4,75
59,7 18,7 92,4 4,73
59,2 19,2 91,2 4,72
57,9 20,4 89,8 4,69
57,1 21,3 88,6 4,67
56,4 22 87,8 4,66
55,4 23 86,6 4,63
54,6 23,9 85,4 4,61
53,3 25,1 83,5 4,57
Run 2
LHS Column (cmHg) RHS Column (cmHg) Temperature (ºC) Log10Vp
70,6 7,6 105 4,92
69,3 8,8 104,2 4,9
68,3 9,9 103,2 4,89
67,1 11,2 101,7 4,87
65,8 12,4 100,5 4,85
64,6 13,7 98,9 4,83
63,5 14,8 97,8 4,81
62,6 15,7 97 4,79
61,8 16,5 95,6 4,78
60,8 17,5 94,3 4,76
59,9 18,4 93,1 4,74
59,2 19,2 92,2 4,72
58,4 20 91,4 4,7
57,9 20,5 90,5 4,69
56,9 21,4 88,9 4,67
56 22,4 87,5 4,65
55,3 23,1 86,4 4,63
Run 3
LHS Column (cmHg) RHS Column (cmHg) Temperature (ºC) Log10Vp
74,8 3,3 106,6 4,97
72,6 5,6 105,2 4,95
71,4 6,8 104,5 4,93
70,1 7,9 103,1 4,91
68,7 9,5 101,4 4,89
67 11,3 99,6 4,87
65,2 13 97,6 4,84
63,8 14,5 96,8 4,81
62,6 15,7 95,3 4,79
61,2 17,2 93,7 4,76
59,8 18,5 92,4 4,74
58,8 19,6 91,3 4,71
57,7 20,7 89,7 4,69
56,6 21,8 88,7 4,66
55,5 22,9 87 4,63
54,5 23,9 85,3 4,61
53,6 24,8 84 4,58
52,8 25,7 82,6 4,55
Conclusions:
The vapor pressure of the test material has been determined to be 2200 Pa at 25ºC
Executive summary:

The test procedure was Method 104 specified in the OECD Guidelines. The test material has been determined to have a vapour pressure of 2.2x10e3 Pa at 25ºC, using an isoteniscope.

Description of key information

The test procedure was Method A4. The test material has been determined to have a vapour pressure of 0.25 Pa at 25ºC, using effusion method: vapour pressure balance.

Key value for chemical safety assessment

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

Additional information