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EC number: 213-214-6 | CAS number: 930-33-6
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:
- This study was conducted between 19 December 2017 and 11 January 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline 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)
- Type of method:
- effusion method: vapour pressure balance
- Specific details on test material used for the study:
- Identity: Triazolone
Appearance: Off-white powder
Storage conditions: Room temperature (15 to 25°C), dark
Batch number: 0727/16
Purity: 99%
Expiry date: 28 April 2019
Date received: 28 April 2017
- Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 0.003 Pa
- Conclusions:
- The vapour pressure of Triazolone was found to be 3 × 10-3 Pa at 25°C.
- Executive summary:
The purpose of this study was to determine the vapour pressure of the test item, Triazolone, using a vapour pressure balance method.
The study was conducted in accordance with accepted principles in order to meet the requirements of REACH Regulation (EU) No 1907/2006 of the European Parliament and of the Council, REACH Regulation (EC) No 440/2008 (as amended) of 30 May 2008
(Method A.4) and the OECD Guidelines for Testing of Chemicals (Method 104).The vapour pressure of Triazolone was found to be 3 x 10-3Pa at 25ºC.
Reference
The results from Runs 1 and 2 are detailed in Tables 1 and 2, A summary is shown below:
|
Run 1 |
Run 2 |
|
|
|
Correlation: |
-0.9957 |
-0.9933 |
Slope: |
-4368 |
-3571 |
Intercept: |
12.00 |
9.470 |
Log Vpat 25°C: |
-2.65 |
-2.51 |
Vp(Pa) at 25°C: |
2.3 × 10-3 |
3.1 × 10-3 |
The mean vapour pressure was 3 × 10-3Pa at 25°C.
A visual assessment of the sample following testing confirmed that the test item had not undergone any changes.
Table 1 Determination of the vapour pressure of Triazolone (Run 1)
Temperature (°C) |
Mass difference (µg) |
Condensation rate (µg/s) |
Vapour pressure (Pa) |
a |
Corrected vapour pressure |
1/Temperature (1/K) |
Log |
||
From |
From condensation |
From |
From condensation |
||||||
|
|
|
|
|
|
|
|
|
|
30.5 |
2.48 |
0.032 |
0.00408 |
0.00236 |
0.448 |
0.00526 |
0.00526 |
0.00329 |
-2.28 |
35.5 |
3.63 |
0.019 |
0.00599 |
0.00144 |
0.214 |
0.00671 |
0.00671 |
0.00324 |
-2.17 |
41.0 |
6.17 |
- |
0.01017 |
- |
- |
0.01017 |
- |
0.00318 |
-1.99 |
46.0 |
10.57 |
0.051 |
0.01743 |
0.00383 |
0.198 |
0.01934 |
0.01934 |
0.00313 |
-1.71 |
50.5 |
17.62 |
0.043 |
0.02905 |
0.00328 |
0.107 |
0.03069 |
0.03069 |
0.00309 |
-1.51 |
55.0 |
28.74 |
0.056 |
0.04739 |
0.00426 |
0.086 |
0.04952 |
0.04952 |
0.00305 |
-1.31 |
60.5 |
47.24 |
0.132 |
0.07789 |
0.01017 |
0.123 |
0.08297 |
0.08297 |
0.00300 |
-1.08 |
65.0 |
72.68 |
0.194 |
0.11983 |
0.01506 |
0.118 |
0.12735 |
0.12735 |
0.00296 |
-0.89 |
69.5 |
105.72 |
0.413 |
0.17429 |
0.03221 |
0.169 |
0.19040 |
0.19040 |
0.00292 |
-0.72 |
|
|
|
|
|
|
|
|
|
|
Table2 Determination of the vapour pressure ofTriazolone (Run 2)
Temperature (°C) |
Mass difference (µg) |
Condensation rate (µg/s) |
Vapour pressure (Pa) |
a |
Corrected vapour pressure |
1/Temperature (1/K) |
Log |
||
From |
From condensation |
From |
From condensation |
||||||
|
|
|
|
|
|
|
|
|
|
26.0 |
1.87 |
0.034 |
0.00309 |
0.00247 |
0.571 |
0.00432 |
0.00432 |
0.00334 |
-2.36 |
31.0 |
2.92 |
0.032 |
0.00481 |
0.00234 |
0.391 |
0.00598 |
0.00598 |
0.00329 |
-2.22 |
36.0 |
3.63 |
0.032 |
0.00599 |
0.00238 |
0.331 |
0.00718 |
0.00718 |
0.00323 |
-2.14 |
41.0 |
5.51 |
0.039 |
0.00908 |
0.00290 |
0.276 |
0.01053 |
0.01053 |
0.00318 |
-1.98 |
46.0 |
8.92 |
0.041 |
0.01471 |
0.00311 |
0.191 |
0.01626 |
0.01626 |
0.00313 |
-1.79 |
51.0 |
14.65 |
0.056 |
0.02415 |
0.00427 |
0.162 |
0.02628 |
0.02628 |
0.00308 |
-1.58 |
56.5 |
23.79 |
0.120 |
0.03922 |
0.00919 |
0.210 |
0.04381 |
0.04381 |
0.00303 |
-1.36 |
61.5 |
38.32 |
0.130 |
0.06318 |
0.01002 |
0.147 |
0.06819 |
0.06819 |
0.00299 |
-1.17 |
66.5 |
53.52 |
0.310 |
0.08824 |
0.02405 |
0.240 |
0.10026 |
0.10026 |
0.00294 |
-1.00 |
69.5 |
57.26 |
0.650 |
0.09441 |
0.05069 |
0.423 |
0.11975 |
0.11975 |
0.00292 |
-0.92 |
|
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|
|
|
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|
Description of key information
The purpose of this study was to determine the vapour pressure of the test item, Triazolone, using a vapour pressure balance method.
The study was conducted in
accordance with accepted principles in order to meet the requirements of
REACH Regulation (EU) No 1907/2006 of the European Parliament and of the
Council, REACH Regulation (EC) No 440/2008 (as amended) of 30 May 2008
(Method A.4) and the OECD Guidelines for Testing of Chemicals (Method
104).
The vapour pressure of Triazolone was found to be 3 x 10-3Pa at 25ºC.
Key value for chemical safety assessment
- Vapour pressure:
- 0.003 Pa
- at the temperature of:
- 25 °C
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
