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EC number: 614-970-3 | CAS number: 69444-47-9
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2006-06-22 to 2006-09-13
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2005-06-09
- Type of method:
- effusion method: vapour pressure balance
- Temp.:
- 25 °C
- Vapour pressure:
- 0 Pa
- Conclusions:
- The vapour pressure of DIGIRENA SA TEMABF4 anhydrous was determined to be 1 x 10^-7 Pa at 25 °C.
Reference
The full results of the two runs are presented in following tables
Determination of the vapour pressure of DIGIRENA SA TEMABF4 anhydrous (Run 1)
Temperature (°C) |
Mass difference (μg) |
Vapour pressure (Pa) |
1/Temperature (1/K) |
Log vapour pressure |
| 120.0 | 0.14 | 0.00023 | 0.00254 | -3.64 |
| 125.0 | 0.15 | 0.00025 | 0.00251 | -3.61 |
| 130.0 | 0.18 | 0.00030 | 0.00248 | -3.53 |
| 136.0 | 0.22 | 0.00036 | 0.00244 | -3.44 |
| 141.5 | 0.24 | 0.00039 | 0.00241 | -3.40 |
| 146.5 | 0.27 | 0.00044 | 0.00238 | -3.35 |
| 152.0 | 0.37 | 0.00061 | 0.00235 | -3.22 |
| 157.0 | 0.48 | 0.00079 | 0.00232 | -3.10 |
| 162.0 | 0.66 | 0.00108 | 0.00230 | -2.96 |
| 166.5 | 0.76 | 0.00125 | 0.00227 | -2.90 |
| 172.0 | 1.18 | 0.00194 | 0.00225 | -2.71 |
| 177.0 | 1.82 | 0.00301 | 0.00222 | -2.52 |
| 182.5 | 2.53 | 0.00417 |
0.00219 |
-2.38 |
Determination of the vapour pressure of DIGIRENA SA TEMABF4 anhydrous (Run 2)
Temperature (°C) |
Mass difference (μg) |
Vapour pressure (Pa) |
1/Temperature (1/K) |
Log vapour pressure |
128.0 |
0.10 |
0.00016 |
0.00249 |
-3.78 |
132.5 |
0.13 |
0.00021 |
0.00247 |
-3.67 |
138.0 |
0.14 |
0.00023 |
0.00243 |
-3.64 |
143.5 |
0.18 |
0.00030 |
0.00240 |
-3.53 |
149.0 |
0.18 |
0.00030 |
0.00237 |
-3.53 |
154.5 |
0.22 |
0.00036 |
0.00234 |
-3.44 |
159.0 |
0.31 |
0.00051 |
0.00231 |
-3.29 |
164.0 |
0.44 |
0.00072 |
0.00229 |
-3.14 |
169.5 |
0.82 |
0.00135 |
0.00226 |
-2.87 |
174.5 |
1.07 |
0.00176 |
0.00223 |
-2.75 |
180.0 |
1.67 |
0.00276 |
0.00221 |
-2.56 |
185.0 |
2.51 |
0.00414 |
0.00218 |
-2.38 |
Run 1 |
Run 2 |
|
Correlation |
-0.9692 |
-0.9618 |
Slope |
-3554 |
-4418 |
Intercept |
5.253 |
7.085 |
Vp (Pa) at 25 °C |
2.2 x 10-7 |
1.9 x 10-8 |
The runs gave a mean vapour pressure value at 25 °C of 1 x 10-7 Pa.
Description of key information
The vapour pressure of DIGIRENA SA TEMABF4 anhydrous was determined to be 1 x 10^-7 Pa at 25 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 0 Pa
- at the temperature of:
- 25 °C
Additional information
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