Fatty acids, C16-18, reaction products with ethanolamine

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

equivalent or similar to guideline

Guideline:

other: ASTM D2879-97 (2007)

Deviations:

yes

Principles of method if other than guideline:

Instead of the mercury manometer stipulated for pressure measurement in the ASTM method, a digital electronic pressure gauge was used.

GLP compliance:

no

Type of method:

isoteniscope

Key result

Temp.:

ca. 20 °C

Vapour pressure:

ca. 0.005 mm Hg

	Vapour Pressure at 20°C/ mm Hg
Run 1	0.004
Run 2	0.005
Run 3	0.005
Average	0.005

Conclusions:

A vapour pressure of 0.005 mmHg at 20°C was determined for substance Fatty acids, C16 -18, reaction products with ethanolamine.

Executive summary:

The ASTM D2879 - 97 Standard Test Method for Vapour Pressure was undertaken to determine the vapour pressure of test item Fatty acids, C16 -18, reaction products with ethanolamine.

The test substance was determined to have a vapour pressure of 0.005 mmHg at 20°C based on three runs.

Description of key information

The ASTM D2879 - 97 Standard Test Method for Vapour Pressure-Temperature Relationship and Initial Decomposition Temperature of Liquids by Isoteniscope was followed to determine the vapour pressure of test substance Fatty Acids, C16-18, reaction products with Ethanolamine . The test substance was determined to have an average vapour pressure 0.005 mmHg at 20°C based on three runs. This is equvalent to a vapour pressure 0.67 Pa at 20°C.

Key value for chemical safety assessment

Vapour pressure:

0.67 Pa

at the temperature of:

20 °C