Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31 July 2018 - 19 April 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2016
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid: viscous
Details on test material:
- Appearance: Brown viscous liquid
- Storage condition of test material: At room temperature
Specific details on test material used for the study:
Decomposition starts above 175°C.

Results and discussion

Vapour pressureopen allclose all
Key result
Temp.:
20 °C
Vapour pressure:
0.011 Pa
Key result
Temp.:
25 °C
Vapour pressure:
0.02 Pa

Any other information on results incl. tables

Table: Results of the Vapour pressure Isothermal TGA Analysis

Temperature
[°C]

Weight loss
[µg/min]

νT
[g/cm2/h]

log νT

log PT

PT
[Pa]

60

0.828124

9.89 x 10-5

-4.01

0.01

1.0

 

0.794576

9.48 x 10-5

-4.02

-0.01

0.97

70

1.54046

1.84 x 10-4

-3.74

0.36

2.3

 

1.41033

1.68 x 10-4

-3.77

0.31

2.0

80

3.23557

3.86 x 10-4

-3.41

0.77

5.9

 

3.00521

3.59 x 10-4

-3.45

0.73

5.3

90

6.61226

7.89 x 10-4

-3.10

1.17

15

 

6.40327

7.64 x 10-4

-3.12

1.15

14

 

Table: Vapour Pressure of the Test Item

Temperature
[°C]

log PT

PT
[Pa]

PT
[mm Hg]

20

-1.96

1.1 x 10-2

8.2 x 10-5

25

-1.69

2.0 x 10-2

1.5 x 10-4

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the substance at 20°C and 25°C was determined to be 1.1E-2 Pa and 2.0E-2 Pa, resp.