(trans(trans))-4'-but-3-enyl-4-(4-methylphenyl)-bicyclohexyl

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2005-10-28 to 2006-03-06

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

1995

GLP compliance:

yes

Type of method:

effusion method: vapour pressure balance

Temp.:

20 °C

Vapour pressure:

0 Pa

Key result

Temp.:

25 °C

Vapour pressure:

0 Pa

Temp.:

50 °C

Vapour pressure:

0.001 Pa

The vapour pressure was measured in the temperature range of 24 °C to 117 °C. The measured vapour pressures at the corresponding temperatures are listed in the following table:

Temperature / °C	Vapour pressure / hPa
49.3	8.2x10^-^6
54.2	1.7x10^-^5
58.0	2.1x10^-^5
61.3	2.5x10^-^5
64.5	3.8x10^-^5
67.6	4.6x10^-^5
72.5	9.6x10^-^5
77.1	1.7x10^-^4
83.6	4.1x10^-^4
88.0	7.0x10^-^4
93.3	1.2x10^-^3
99.6	2.4x10^-^3
105.2	3.8x10^-^3
112.2	8.3x10^-^3
116.9	1.3x10^- 2

 

The values for 20, 25 and 50 °C were calculated, using the Antoine constants A, B and C.

Antoine parameters and extrapolated vapour pressures:

T/°C	log (p/hPa) = A + B/(C + T[°C])	p/hPa	p/Pa
20	A = 13.67309	8.11E-08	8.1E-06
25	B = -6087.03	1.81E-07	1.8E-05
50	C = 273.15	6.86E-06	6.9E-04

Conclusions:

The vapour pressure of the test substance was determined to be 8.1E-06 Pa at 20 °C, 1.8E-05 Pa at 25 °C and 6.9E-04 Pa at 50 °C, respectively.

Executive summary:

A study was conducted according to OECD TG 104 and Regulation (EC) No 440/2008 method A.4 to determine the vapour pressure of the test item. The vapour pressure was measured in the temperature range of 24 °C to 117 °C using the effusion method. The vapour pressure was calculated using the linear regression equation of the Log P versus 1/T function. The vapour pressure of the test substance was determined to be 8.1E-06 Pa at 20 °C, 1.8E-05 Pa at 25 °C and 6.9E-04 Pa at 50 °C, respectively.

Description of key information

The vapour pressure of the test substance was determined to be 8.1E-06 Pa at 20 °C, 1.8E-05 Pa at 25 °C and 6.9E-04 Pa at 50 °C, respectively.

Key value for chemical safety assessment

Vapour pressure:

0 Pa

at the temperature of:

25 °C

Additional information

A study was conducted according to OECD TG 104 and Regulation (EC) No 440/2008 method A.4 to determine the vapour pressure of the test item. The vapour pressure was measured in the temperature range of 24 °C to 117 °C using the effusion method. The vapour pressure was calculated using the linear regression equation of the Log P versus 1/T function. The vapour pressure of the test substance was determined to be 8.1E-06 Pa at 20 °C, 1.8E-05 Pa at 25 °C and 6.9E-04 Pa at 50 °C, respectively (reference 4.6-1).