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Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
other: GLP-Guideline study (reliability 1), but the vapour pressure is extrapolated over a wide temperature range, so for the value at 20 °C the reliability is 3

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report Date:
2001

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
Cited as Directive 92/69/EWG, A.4
Deviations:
yes
Remarks:
: no measurements in the range 0 to 50 °C
GLP compliance:
yes
Type of method:
dynamic method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): o-Nitrochlorbenzol
- Analytical purity: no data

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.04 hPa
Remarks on result:
other: obtained by extrapolation with the regressed parameters of the Antoine-Equation
Temp.:
25 °C
Vapour pressure:
0.07 hPa
Remarks on result:
other: obtained by extrapolation with the regressed parameters of the Antoine-Equation
Temp.:
50 °C
Vapour pressure:
0.43 hPa
Remarks on result:
other: obtained by extrapolation with the regressed parameters of the Antoine-Equation
Temp.:
86.35 °C
Vapour pressure:
3.6 hPa
Temp.:
245.52 °C
Vapour pressure:
1 004.2 hPa

Any other information on results incl. tables

Coefficients of Antoine equation:

A = 7.8561

B = 2302.2

C = 230

R = 1

Interpolation range: 32 °C < T < 245.52 °C

Table 1. Details

Temperature

[°C]

Temperature

[1/K*104]

p

[hPa]

regression

[hPa]

deviation

(pmeasured - pcalculated)/pmeasured*100%

86.93

27.8

3.9

3.9

0.2

124.98

25.1

24.4

23.5

-3.9

175.98

22.3

157.0

153.2

-2.5

217.92

20.4

518.8

520.4

0.3

86.35

27.8

3.6

3.8

5.0

108.23

26.2

11.4

11.2

-1.7

163.92

22.9

105.7

102.8

-2.9

198.71

21.2

310.6

306.2

-1.4

228.42

19.9

676.0

382.4

0.9

238.21

19.6

856.9

869.2

1.4

245.52

19.3

1004.2

1034.2

2.9

Applicant's summary and conclusion