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EC number: 471-170-5 | CAS number: -
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Testing was conducted between 24 June 2011 and 04 July 2011.
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 011
- Report date:
- 2011
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- effusion method: vapour pressure balance
Test material
- Test material form:
- liquid
Results and discussion
Vapour pressure
- Temp.:
- 25 °C
- Vapour pressure:
- > 0.009 Pa
Transition / decomposition
- Transition / decomposition:
- no
Any other information on results incl. tables
Run1
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
21 |
294.15 |
0.003399626 |
0.32 |
3.200E-10 |
0.000444242 |
-3.352380400 |
22 |
295.15 |
0.003388108 |
6.10 |
6.100E-09 |
0.008468363 |
-2.072200544 |
23 |
296.15 |
0.003376667 |
0.11 |
1.100E-10 |
0.000152708 |
-3.816137694 |
25 |
298.15 |
0.003354016 |
9.93 |
9.930E-09 |
0.013785384 |
-1.860581130 |
27 |
300.15 |
0.003331667 |
1.32 |
1.320E-09 |
0.001832498 |
-2.736956448 |
28 |
301.15 |
0.003320604 |
2.83 |
2.830E-09 |
0.003928765 |
-2.405743943 |
29 |
302.15 |
0.003309614 |
2.08 |
2.080E-09 |
0.002887573 |
-2.539467044 |
30 |
303.15 |
0.003298697 |
2.24 |
2.240E-09 |
0.003109694 |
-2.507282360 |
No statistical analysis is given due to the nature of the plot.
Run 1 -Graph of Log10Vapour Pressure vs Reciprocal Temperature see Attachment 3 Run 1 to 4.
Run 2
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
20 |
293.15 |
0.003411223 |
3.77 |
3.770E-09 |
0.005233726 |
-2.281189029 |
22 |
295.15 |
0.003388108 |
7.21 |
7.210E-09 |
0.010009327 |
-1.999595114 |
23 |
296.15 |
0.003376667 |
1.16 |
1.160E-09 |
0.001610377 |
-2.793072390 |
24 |
297.15 |
0.003365304 |
7.11 |
7.110E-09 |
0.009870502 |
-2.005660778 |
25 |
298.15 |
0.003354016 |
1.20 |
1.200E-09 |
0.001665907 |
-2.778349133 |
26 |
299.15 |
0.003342805 |
7.51 |
7.510E-09 |
0.010425804 |
-1.981890442 |
27 |
300.15 |
0.003331667 |
2.95 |
2.950E-09 |
0.004095356 |
-2.387708363 |
28 |
301.15 |
0.003320604 |
9.72 |
9.720E-09 |
0.013493850 |
-1.869864114 |
29 |
302.15 |
0.003309614 |
10.21 |
1.021E-08 |
0.014174096 |
-1.848504637 |
30 |
303.15 |
0.003298697 |
3.52 |
3.520E-09 |
0.004886662 |
-2.310987715 |
No statistical analysis is given due to the nature of the plot.
Run 2 -Graph of Log10Vapour Pressure vs Reciprocal Temperature see Attachment 3 Run 1 to 4.
Run 3
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
20 |
293.15 |
0.003411223 |
4.68 |
4.680E-09 |
0.006497039 |
-2.187284526 |
21 |
294.15 |
0.003399626 |
5.37 |
5.370E-09 |
0.007454936 |
-2.127556093 |
22 |
295.15 |
0.003388108 |
0.07 |
7.000E-11 |
0.000097178 |
-4.012432339 |
24 |
297.15 |
0.003365304 |
4.86 |
4.860E-09 |
0.006746925 |
-2.170894109 |
25 |
298.15 |
0.003354016 |
7.11 |
7.110E-09 |
0.009870502 |
-2.005660778 |
26 |
299.15 |
0.003342805 |
0.10 |
1.000E-10 |
0.000138826 |
-3.857530379 |
27 |
300.15 |
0.003331667 |
9.83 |
9.830E-09 |
0.013646558 |
-1.864976861 |
28 |
301.15 |
0.003320604 |
11.00 |
1.100E-08 |
0.015270818 |
-1.816137694 |
29 |
302.15 |
0.003309614 |
12.27 |
1.227E-08 |
0.017033904 |
-1.768685816 |
30 |
303.15 |
0.003298697 |
13.25 |
1.325E-08 |
0.018394395 |
-1.735314500 |
No statistical analysis is given due to the nature of the plot.
Run 3 -Graph of Log10Vapour Pressure vs Reciprocal Temperature see Attachment 3 Run 1 to 4.
Run 4
Temperature (ºC) |
Temperature (K) |
Reciprocal Temperature (K-1) |
Mass Difference (µg) |
Mass Difference (kg) |
Vapour Pressure (Pa) |
Log10Vp |
20 |
293.15 |
0.003411223 |
4.88 |
4.880E-09 |
0.006774690 |
-2.169110557 |
21 |
294.15 |
0.003399626 |
3.63 |
3.630E-09 |
0.005039370 |
-2.297623754 |
22 |
295.15 |
0.003388108 |
4.89 |
4.890E-09 |
0.006788573 |
-2.168221520 |
23 |
296.15 |
0.003376667 |
1.69 |
1.690E-09 |
0.002346153 |
-2.629643674 |
24 |
297.15 |
0.003365304 |
6.45 |
6.450E-09 |
0.008954252 |
-2.047970664 |
25 |
298.15 |
0.003354016 |
1.32 |
1.320E-09 |
0.001832498 |
-2.736956448 |
26 |
299.15 |
0.003342805 |
2.18 |
2.180E-09 |
0.003026399 |
-2.519073885 |
27 |
300.15 |
0.003331667 |
6.87 |
6.870E-09 |
0.009537320 |
-2.020573642 |
28 |
301.15 |
0.003320604 |
4.92 |
4.920E-09 |
0.006830220 |
-2.165565276 |
29 |
302.15 |
0.003309614 |
1.80 |
1.800E-09 |
0.002498861 |
-2.602257874 |
30 |
303.15 |
0.003298697 |
0.97 |
9.700E-10 |
0.001346609 |
-2.870758644 |
No statistical analysis is given due to the nature of the plot.
Run 1 -Graph of Log10Vapour Pressure vs Reciprocal Temperature see Attachment 3 Run 1 to 4.
Applicant's summary and conclusion
- Conclusions:
- The vapour pressure of the test item has been determined to be less than 9.4 x 10-3 Pa at 25ºC.
- Executive summary:
INTRODUCTION
The vapour pressure of the test item has been determined.
Method employed is designed to be compatible with that specified in the current OECD Guidelines for Testing of Chemicals.
Method
The vapour pressure was determined using a vapour pressure balance with measurements being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using a procedure designed to be compatible with Method 104 specified in the OECD Guidelines for Testing of Chemicals,23 March 2006.
Conclusion
The vapour pressure of the test item has been determined to be less than 9.4 x 10-3 Pa at 25ºC.
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