Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2018-06-27 to 2018-10-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
2006
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: Knudsen cell
Remarks:
effusion method: vapour pressure balance
Key result
Temp.:
20 °C
Vapour pressure:
< 0.006 Pa
Remarks on result:
other: No vapour pressure measureable, estimation on the basis of maximum measured vapour pressures
Key result
Temp.:
25 °C
Vapour pressure:
< 0.006 Pa
Remarks on result:
other: No vapour pressure measureable, estimation on the basis of maximum measured vapour pressures
Key result
Temp.:
50 °C
Vapour pressure:
< 0.006 Pa
Remarks on result:
other: No vapour pressure measureable, estimation on the basis of maximum measured vapour pressures
Key result
Vapour pressure:
< 0.006 Pa

Effusion method:Knudsen cell

No evaluable mass loss could be recorded in the temperature of 133 – 151 °C. Due to this result, further measurements were carried using the vapour pressure balance.

Effusion method: Vapour pressure balance

In the first measurement a vapour pressure could be measured in the temperature range from 73 to 138 °C and in the second measurement from 62 to 78 °C. The measured vapour pressure values together with the measured temperatures are listed inTable1.

Table1:    Results of the Effusion method: Vapour pressure balance

No.

Temperature / °C

Vapour pressure / Pa

1-1

73

2.14 E-03

1-2

78

2.93 E-03

1-3

83

3.50 E-03

1-4

87

3.30 E-03

1-5

97

4.17 E-03

1-6

107

6.38 E-03

1-7

112

5.41 E-03

1-8

118

3.82 E-03

1-9

128

3.44 E-03

1-10

138

1.19 E-03

2-1

62

2.69 E-03

2-2

64

5.43 E-04

2-3

66

9.58 E-04

2-4

68

1.07 E-03

2-5

70

1.09 × 10-3

2-6

72

1.10 E-03

2-7

74

1.01 E-03

2-8

76

9.37 E-04

2-9

78

8.17 E-04

Conclusions:
The test item TA-1 showed no evaluable vapour pressure curve in the temperature range of 62 to 151 °C. Due to this result, the vapour pressures for the temperatures 20, 25 and 50 °C are estimated on the basis of the maximum measured vapour pressures, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006). At all temperatures the vapour pressure was estimated to be < 6.4E-03 Pa.

Description of key information

The test item TA-1 showed no evaluable vapour pressure curve in the temperature range of 62 to 151 °C. Due to this result, the vapour pressures for the temperatures 20, 25 and 50 °C are estimated on the basis of the maximum measured vapour pressures, according to Regulation EC No. 440/2008 Method A.4. Vapour Pressure and OECD Test Guideline 104 (2006). At all temperatures the vapour pressure was estimated to be < 6.4E-03 Pa.

Key value for chemical safety assessment

Additional information