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EC number: 256-277-5 | CAS number: 46729-07-1
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:
- Experimental starting date: 02 November 2017. Experimental completion date: 02 November 2017
- 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
- Qualifier:
- according 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
- Specific details on test material used for the study:
- Identification: 4-(1,1-dimethylethyl)cyclohexyl methacrylate (CAS 46729-07-1)
Alterative name: Nourycryl MC 110
Description: clear colourless liquid
Batch number: DAR-16030
Purity: 89.2%
Expiry date: 01 August 2018
Storage conditions: approximately 4°C, in the dark - Key result
- Temp.:
- 25 °C
- Vapour pressure:
- 2.88 Pa
- Conclusions:
- The vapor pressure of the test item by the balance method has been determined to be 2.88 Pa at 25 °C (298 K).
- Executive summary:
The vapor pressure of 4-(1,1-dimethylethyl)cyclohexyl methacrylate (CAS 46729-07-1) has been determined to be 2.88 Pa at 25 °C (298 K), using the balance method, designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.
Reference
Results
The direct values of the vapor pressure at 25 °C are shown in the following table:
Vapor Pressure Data at 25 °C
| Run | Mass Difference (μg) | Vapor Pressure (Pa) |
| 1 | 1933.14 | 2.684 |
| 2 | 1902.68 | 2.641 |
| 3 | 1985.9 | 2.757 |
| 4 | 2080.44 | 2.888 |
| 5 | 2136.17 | 2.966 |
| 6 | 2154.02 | 2.99 |
| 7 | 2158.51 | 2.997 |
| 8 | 2147.55 | 2.981 |
| 9 | 2137.34 | 2.967 |
| 10 | 2114.1 | 2.935 |
Mean vapor pressure at 25 °C: 2.88 Pa
Discussion
The test item did not visually change in appearance under the conditions used.
Description of key information
The measured vapour pressure is 2.88 Pa @ 25 oC
Key value for chemical safety assessment
- Vapour pressure:
- 2.88 Pa
- at the temperature of:
- 25 °C
Additional information
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