[(2,4-dibromophenoxy)methyl]oxirane

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Study period:

30. Jan. - 23. Aug. 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Qualifier:

according to guideline

Guideline:

EU Method A.4 (Vapour Pressure)

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: Knudsen cell

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: CG272
- Expiration date of the lot/batch: 11. July 2018
- Purity test date: not stated

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: room temperature
- Stability under test conditions: not stated
- Solubility and stability of the test substance in the solvent/vehicle: not applicable
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: not applicable

TREATMENT OF TEST MATERIAL PRIOR TO TESTING
none

Test no.:

#1

Temp.:

ca. 303.2 K

Vapour pressure:

ca. 0.022 Pa

Test no.:

#2

Temp.:

ca. 318.2 K

Vapour pressure:

ca. 0.071 Pa

Test no.:

#3

Temp.:

ca. 333.2 K

Vapour pressure:

ca. 0.257 Pa

Test no.:

#4

Temp.:

ca. 348.2 K

Vapour pressure:

ca. 0.847 Pa

Test no.:

#5

Temp.:

ca. 363.2 K

Vapour pressure:

ca. 2.29 Pa

The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 0.9994.

For the test item DENACOL EX-147, the following vapour pressures at 20 °C and at 25 °C

were calculated from the regression equation:

Vapour pressure at 20 °C: 7.55 * 10-03Pa

Vapour pressure at 25 °C: 1.24 * 10-02Pa

Conclusions:

For the test item DENACOL EX-147, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:
Vapour pressure at 20 °C: 7.55E-03 Pa
Vapour pressure at 25 °C: 1.24E-02 Pa

Executive summary:

The vapour pressure of DENACOL EX-147 was determined following EU A.4 using the effusion method (weight loss).

Vapour pressure was examined at five different temperatures. All temperatures could be evaluated as they showed reproducible weight loss. For these temperatures, 1/T was plotted against log (P).

The graph 1/T vs. log (P) shows a straight line with a correlation coefficient of - 0.9994.

For the test item DENACOL EX-147, the following vapour pressures at 20 °C and at 25 °C

were calculated from the regression equation:

Vapour pressure at 20 °C: 7.55E-03 Pa

Vapour pressure at 25 °C: 1.24E-02 Pa

Description of key information

one valid study available

Key value for chemical safety assessment

Vapour pressure:

0.008 Pa

at the temperature of:

20 °C