Reactionmass of dodecan-2-yl prop-2-enoate and dodecan-3-yl prop-2-enoate and dodecan-4-yl prop-2-enoate

Vapour pressure

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: ASTM E-1719-97

Deviations:

no

GLP compliance:

no

Type of method:

dynamic method

Temp.:

25 °C

Vapour pressure:

0 mm Hg

Key result

Temp.:

20 °C

Vapour pressure:

0 mm Hg

Temp (°C)	Corrected Pvap (mm Hg)
151.0	9.6
161.4	17.2
184.2	47.0
204.0	96.7
217.0	146.5
226.5	196.5
233.7	246.2
240.6	296.2
246.2	345.9

Conclusions:

MTDID 44430 has an extrapolated vapor pressure of 1.6E-6 mm Hg at 20 °C (5.7E-6 mm Hg at 25 °C). Extrapolated from experimental data.

Executive summary:

The vapor pressure of MTDID 44430 was measured using the dynamic method and extrapolated to lower temperatures using the Antoine equation. The study was performed in accoradance with a guideline study but not GLP compliant, therfore the study is considered reliable with restrictions.

Reference 2

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

other: ASTM E1719-97

Deviations:

no

GLP compliance:

no

Type of method:

dynamic method

Key result

Temp.:

20 °C

Vapour pressure:

0 mm Hg

Temp.:

25 °C

Vapour pressure:

0.001 mm Hg

Temp (°C)	Vapor Pressure (mm Hg)
142.0	8.2
147.9	10.2
156.4	14.7
167.6	25.3
180.5	45.3
202.9	95.0

Conclusions:

MTDID 44430 has an extrapolated vapor pressure of 2.8E-4 mm Hg at 20 °C (5.7E-4 mm Hg at 25 °C). Extrapolated from experimental data.

Executive summary:

The vapor pressure of MTDID 44430 was measured using the dynamic method and extrapolated to lower temperatures using the Antoine equation. The study was performed in accoradance with a guideline study but not GLP compliant, therfore the study is considered reliable with restrictions.

Reference 3

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

06 Jan 2020 - 18 Feb 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

GLP compliance:

no

Type of method:

gas saturation method

Key result

Temp.:

18 °C

Vapour pressure:

0 mm Hg

Remarks on result:

other: Avg. of 5

2-Ethylhexyl acrylate (2-EHA) was run as a control allowing for benchmarking of the developed method with literature values. Two literature values exist for 2-EHA, 0.01 mmHg at 20°C (NTP, 1992) and 0.178 mmHg at 25°C (Daubert and Danner, 1989). The average of five test results for 2-EHA showed a vapor pressure of 0.015 mm Hg at 18°C.

Conclusions:

MTDID 44430 has a calculated vapor pressure of 1.8E-05 mm Hg at 18 °C.

Executive summary:

The vapor pressure of MTDID 44430 was measured using the gas saturation method, with measurement by thermal desorption gas chromatography/mass spectrometry. The measurement was benchmarked by measurement of 2 -ethylhexyl acrylate vapor pressure, with good agreement with literature values. The study was performed in accordance with a guideline study but not GLP compliant, therefore the study is considered reliable with restrictions.

Description of key information

MTDID 44430 has a calculated vapor pressure of 1.8E-05 mm Hg at 18 °C.

Key value for chemical safety assessment

Vapour pressure:

0.002 Pa

at the temperature of:

18 °C

Additional information

The vapor pressure of MTDID 44430 was measured using the gas saturation method, with measurement by thermal desorption gas chromatography/mass spectrometry. The measurement was benchmarked by measurement of 2 -ethylhexyl acrylate vapor pressure, with good agreement with literature values. The study was performed in accordance with a guideline study but not GLP compliant, therefore the study is considered reliable with restrictions.

In a supporting study, the vapor pressure of MTDID 44430 has an extrapolated vapor pressure of 1.6E-6 mm Hg at 20 °C using the dynamic method and extrapolated to lower temperatures using the Antoine equation. The study was performed in accordance with a guideline study but not GLP compliant, therefore the study is considered reliable with restrictions. In a second supporting study, the vapor pressure of MTDID 44430 was similarly evaluated as the first supporting summary and was not GLP compliant, but was 2.84E-4 mm Hg at 20 °C (5.74E-4 mm Hg at 25 °C). Since the extrapolation was based on fewer data points, the key value is preferred.