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Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline + GLP-Study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2012

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
GLP compliance:
yes
Type of method:
dynamic method

Test material

Constituent 1
Chemical structure
Reference substance name:
Propylphosphonic dichloride
EC Number:
225-195-1
EC Name:
Propylphosphonic dichloride
Cas Number:
4708-04-7
Molecular formula:
C3H7Cl2OP
IUPAC Name:
propylphosphonoyl dichloride

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
1 hPa
Remarks on result:
other: Calculated from Antoine-equation. Measured results see below.
Temp.:
25
Vapour pressure:
1.4 hPa
Remarks on result:
other: Calculated from Antoine-equation. Measured results see below.
Temp.:
50
Vapour pressure:
5.7 hPa
Remarks on result:
other: Calculated from Antoine-equation. Measured results see below.

Any other information on results incl. tables

The vapour pressure was measured in the temperature range of 98 to 190 °C. The measured vapour pressure values together with the measured temperatures are listed in table

No. Temperature / °C Vapour pressure / hPa   Remark

1 97.91                             50                     measured up

2 108.97                             75                     measured up

3 117.05                            100                     measured up

4 128.91                            150                     measured up

5 137.59                            200                     measured up

6 150.35                                   300                     measured up

7 160.02                            400                     measured up

8 174.58                            600                     measured up

9 185.54                            800                     measured up

10 190.23                            900                     measured up

11 180.26                            700                     measured down

12 155.23                            350                     measured down

13 123.13                            125                     measured down

14 102.49                             60                     measured down

From the measured data points of the vapour pressure curve the constants A, B and C of the Antoine equation

Log p [Pa] = A + B/(C+T [°C])

can be derived by regression of the data points to

A = 10.0173

B = -2346.10

C = 273.15.

Applicant's summary and conclusion