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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
5 October 2017 - 9 November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
March 04, 2016
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
March 23, 2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
August 1996
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: isothermal thermogravimetry
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No. of test material: 1704HH0700/0
- Expiration date of the lot/batch: 29th April 2018
- Purity test date: Not indicated

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature
- Stability under test conditions: No specific conditions required
Test no.:
#1
Temp.:
20 °C
Vapour pressure:
< 0.002 Pa
Test no.:
#2
Temp.:
20 °C
Vapour pressure:
< 0 mm Hg
Test no.:
#3
Temp.:
25 °C
Vapour pressure:
< 0.004 Pa
Test no.:
#4
Temp.:
25 °C
Vapour pressure:
< 0 mm Hg

Table 2 Results of the Vapour pressure Isothermal TGA Analysis

Temperature
[°C]

Weight loss
[µg/min]

νT
[g/cm2/h]

logνT

logPT

PT
[Pa]

100

0.258569

3.09´10-5

-4.51

-0.64

0.23

 

0.281841

3.36´10-5

-4.47

-0.59

0.26

110

0.276516

3.30´10-5

-4.48

-0.60

0.25

 

0.301333

3.60´10-5

-4.44

-0.55

0.28

120

0.334609

3.99´10-5

-4.40

-0.49

0.32

 

0.381770

4.56´10-5

-4.34

-0.42

0.38

130

0.486843

5.81´10-5

-4.24

-0.28

0.52

 

0.529957

6.33´10-5

-4.20

-0.24

0.58

 

        
Table 3 Vapour pressure of the Test Item

 

20°C

25°C

 

[Pa]

[mm Hg]

[Pa]

[mm Hg]

Test item

< 1.5´10-3

< 1.1´10-5

< 4.0´10-3

< 3.0´10-5
Conclusions:
The vapour pressure of the test item at 20°C was <1.5E-3 Pa or <1.1E-5 mm Hg. The vapour pressure of the test item at 25°C was <4.0E-3 Pa <3.0E-5 mm Hg.
Executive summary:

Reingruber (2017) is a GLP-compliant study following OECD guideline 104. The isothermal thermogravimetric effusion method was applied for the determination of the vapour pressure of the test item. The study is assigned a Klimisch score of 1 (reliable without restrictions). The vapour pressure of the test item at 20°C was <1.5E-3 Pa or <1.1E-5 mm Hg. The vapour pressure of the test item at 25°C was <4.0E-3 Pa <3.0E-5 mm Hg.

Description of key information

The vapour pressure of the test item at 20°C was <1.5E-3 Pa or <1.1E-5 mm Hg. The vapour pressure of the test item at 25°C was <4.0E-3 Pa or <3.0E-5 mm Hg.

Key value for chemical safety assessment

Vapour pressure:
0.002 Pa
at the temperature of:
20 °C

Additional information

Reingruber (2017) is a GLP-compliant study following OECD guideline 104. The isothermal thermogravimetric effusion method was applied for the determination of the vapour pressure of the test item. The study is assigned a Klimisch score of 1 (reliable without restrictions). The vapour pressure of the test item at 20°C was <1.5E-3 Pa or <1.1E-5 mm Hg. The vapour pressure of the test item at 25°C was <4.0E-3 Pa <3.0E-5 mm Hg.