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Physical & Chemical properties

Vapour pressure

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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
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.4 (Vapour Pressure)
according to guideline
OECD Guideline 104 (Vapour Pressure Curve)
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
25 °C
Vapour pressure:
2.88 Pa


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


The test item did not visually change in appearance under the conditions used.

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.

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