Reaction mass of 1,3-dioxane-5,5-dimethanol and 1,3-Propanediol, 2-(hydroxymethyl)-2-[(methoxymethoxy)methyl]-

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 11 MAY 2022 to 20 JUNE 2022

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The test method described is designed to be compatible with the procedures indicated by the following internationally accepted guidelines and recommendations: • Commission Regulation (EC) No 440/2008 (as amended) of 30 May 2008 • OECD Guidelines for Testing of Chemicals (104)

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: vapour pressure balance

Key result

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Remarks on result:

other: Average of the last 10 runs (sequence 5)

Test no.:

#1

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Test no.:

#2

Temp.:

25 °C

Vapour pressure:

0.007 Pa

Test no.:

#3

Temp.:

25 °C

Vapour pressure:

0.006 Pa

Test no.:

#4

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Test no.:

#5

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Test no.:

#6

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Test no.:

#7

Temp.:

25 °C

Vapour pressure:

0.004 Pa

Test no.:

#8

Temp.:

25 °C

Vapour pressure:

0.006 Pa

Test no.:

#9

Temp.:

25 °C

Vapour pressure:

0.006 Pa

Test no.:

#10

Temp.:

25 °C

Vapour pressure:

0.005 Pa

Transition / decomposition:

no

Conclusions:

The vapor pressure of the Polyol PX has been determined to be 5.27 x 10-3 Pa at 25 ºC using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

Executive summary:

The purpose of this study is to evaluate the vapor pressure of the test item as required by a final rule under section 4(a)(1)(B) of the Toxic Substances Control Act (TSCA).

The determination was carried out using a procedure designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008, Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.

A total of 5 sequences of 10 runs were performed, the final 4 were using the same sample to achieve equilibrium or determine that the balance readings would become too low to use. Equilibrium has been deemed to have been reached and the vapor pressure calculated from the fifth sequence.
To show the behaviour of the test item during testing for sequences 1 to 4 the temperatures, mass differences and the resulting calculated values of vapor pressure were recorded.
The vapor pressure of the test item has been determined to be 5.27 x 10-3 Pa at 25 ºC.

Key value for chemical safety assessment

Vapour pressure:

0.005 Pa

at the temperature of:

25 °C