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EC number: 933-779-9 | CAS number: -
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:
- 2018-10-09 to 2018-10-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Version / remarks:
- EU Regulation (EC) 440/2008, Annex Part A test A.4.
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- static method
- Specific details on test material used for the study:
- Test Item Name: Reaction mass of (Z)-3,7-dimethylocta-1,3,6,-triene and dipentene
Chemical Name: (Z)-3,7-dimethylocta-1,3,6,-triene and dipentene
Other Name: Ocimene PQ
CAS numbers: 3338-55-4 [(Z)-3,7-dimethylocta-1,3,6,-triene]
138-86-3 (dipentene)
Batch/ Lot Number: A170524D
Purity: 100% (Because this is a reaction mass, it is being treated as 100% for dose calculations)
Description: Colourless liquid
Re-test/ Expiry date: 06/06/2019 - Key result
- Test no.:
- #1
- Temp.:
- 20 °C
- Vapour pressure:
- 150 Pa
- Remarks on result:
- other: mean of two runs
- Conclusions:
- The vapour pressure of Ocimene PQ was determeined to be 150 Pa at 20 °C.
- Executive summary:
The vapour pressure of Ocimene PQ was determined using the static method according to EC method A.4. The vapour pressure of Ocimene PQ was reported to be 150 Pa at 20 °C.
Reference
Date : 09/10/2018 – 10/10/2018
Operator: A. Venn
Preparation: Tested as received.
SOP Reference: CTL SOP No. 404B
Apparatus: Static Method Apparatus; Temperature Bath, Balance, Pressure Monitors
| Temp / °C | Temp / K | P / mbar | **P / Pa |
| Run 1 | |||
| *20 | 293.15 | 1.54 | 154 |
| 20 | 293.15 | 1.5 | 150 |
| 29.8 | 302.95 | 3 | 300 |
| 39.9 | 313.05 | 5.6 | 560 |
| 49.7 | 322.85 | 9.6 | 960 |
| 60 | 333.15 | 16.4 | 1640 |
| Run 2 | |||
| *20 | 293.15 | 1.54 | 154 |
| 20 | 293.15 | 1.5 | 150 |
| 29.7 | 302.85 | 3 | 300 |
| 39.8 | 312.95 | 5.7 | 570 |
| 49.8 | 322.95 | 10.2 | 1020 |
| 60 | 333.15 | 17.2 | 1720 |
* - Determined by extrapolation (inside points)
** - Calculated
For Run 1, 15.8 g of sample was used. Sample was degassed for 6 minutes. Pressure at start of analysis was 0.0993 mbar.
Run 2, 14.4 g of sample was used. Sample was degassed for 7 minutes. Pressure at start of analysis was 0.0955 mbar.
Description of key information
The vapour pressure of Ocimene PQ was determined using the static method according to EC method A.4. The vapour pressure of Ocimene PQ was reported to be 150 Pa at 20 °C.
Key value for chemical safety assessment
- Vapour pressure:
- 150 Pa
- at the temperature of:
- 20 °C
Additional information
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