Registration Dossier

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Jan - March 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
Qualifier:
according to
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Version / remarks:
1996
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Details on test material:
- Identification: Zirconium (IV) acetylacetonate (Zr-acac)
- Description: White to off-white powder
- Storage conditions: At room temperature
Specific details on test material used for the study:
Decomposition temp.: ca. 200°C

Results and discussion

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

Any other information on results incl. tables

Results of the vapour pressure isothermal TGA Analysis

Temperature
[°C]

Weight loss
[µg/min]

νT
[g/cm2/h]

logνT

logPT

PT
[Pa]

150

29.5649

3.53 x 10-3

-2.45

1.96

90

 

24.6131

2.94 x 10-3

-2.53

1.85

72

160

55.1297

6.58 x 10-3

-2.18

2.30

2.0 x 102

 

51.7488

6.18 x 10-3

-2.21

2.26

1.8 x 10 2

170

100.044

1.19 x 10-2

-1.92

2.63

4.2 x 102

 

89.1287

1.06 x 10-2

-1.97

2.56

3.6 x 10 2

Vapour Pressure of the Test Item

Temperature
[°C]

logPT

PT
[Pa]

PT
[mm Hg]

20

-4.86

1.4 x 10-5

1.07 x 10-7

25

-4.49

3.2 x 10-5

2.4 x 10-7

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the substance at 20°C and 25°C was determined to be 1.4E-5 Pa and 3.2E-5 Pa, resp.