2-ethyl-2-[[(1-oxononyl)oxy]methyl]propane-1,3-diyl dinonan-1-oate

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

disregarded due to major methodological deficiencies

Study period:

2013

Reliability:

3 (not reliable)

Rationale for reliability incl. deficiencies:

other: Recent well documented study

Qualifier:

no guideline followed

Principles of method if other than guideline:

An apparatus automatically determines the vapour pressure of non-viscous liquids in the temperaure range from 0 to 120 °C for values of the vapor pressure between 0 and 10000 hPa. The principle of the instrument is based on the measurement of the vapour pressure after vacuum creation.

GLP compliance:

no

Type of method:

other: Minivap VPX - Grabner Instruments

Temp.:

30 °C

Vapour pressure:

2.7 kPa

Temperature, °C	Vapour pressure, kPa
30	2.7
35	4.9
40	5.8
45	7.3
50	9.0
55	11.5
60	14.6
65	19.4
70	24.7
75	31.0
80	37.4
85	44.6
90	53.3
95	63.7
100	73.8

Conclusions:

The vapour pressure at 30°C was determined to be 2.7 kPa.

Reference 2

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

June 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Version / remarks:

European Commission Regulations (EC) No. 440/2008 and No. 761/2009,
A.4. Vapour pressure: Effusion method

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:

Batch No.: 890000024840
Identity: 2-Ethyl-2-[[(1-oxononyl)oxy]methyl]propane-1,3-diyl dinonan-1-oate
Molecular mass: 554.85 g/mol

Test no.:

#1

Temp.:

20 °C

Vapour pressure:

0 Pa

Remarks on result:

other: Calculated using the Antoine constants

Test no.:

#2

Temp.:

25 °C

Vapour pressure:

0 Pa

Remarks on result:

other: Calculated using the Antoine constants

Vapour pressure:

0 Pa

Remarks on result:

other: Calculated using the Antoine constants

Temperature (°C)	Vapour Pressure (hPa)
30	n.e.
40	n.e.
50	n.e.
60	6.8 x 10 -6
70	1.7 x 10 -5
80	2.5 x 10 -5
90	5.2 x 10 -5
100	1.1 x 10 -4

n.e. = not evaluable

The vapour pressure was measured in the temperature range from 30 °C to 100 °C. The measured vapour pressures at the corresponding temperatures are listed in Table reported above. After the measurement a mass loss of approx. 13 % (w/w) was determined. The Vapour Pressure values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C as shown in Table herein below.

 

T (°C)	P (hPa)	log (p/hPa) = A + B/(C + Temp°C)
20	2.8x10 -7	A = 5.34437
25	4.5x10 -7	B = -3457.02
50	3.6x10 -6	C = 273.15

Conclusions:

The vapour pressure of the target substance at 20°C , measured according to OECD 104, was 0.000028 Pa

Description of key information

The vapour pressure at 20°C was measured according to OECD 104

Key value for chemical safety assessment

Vapour pressure:

0 Pa

at the temperature of:

20 °C