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EC number: 211-425-8 | CAS number: 644-97-3
Vapour pressure
Administrative data
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: scientifically acceptable method
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1990
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- GLP compliance:
- no
- Type of method:
- dynamic method
Test material
- Reference substance name:
- Dichloro(phenyl)phosphine
- EC Number:
- 211-425-8
- EC Name:
- Dichloro(phenyl)phosphine
- Cas Number:
- 644-97-3
- Molecular formula:
- C6H5Cl2P
- IUPAC Name:
- dichloro(phenyl)phosphine
- Test material form:
- other: liquid
- Details on test material:
- Name of test material (as cited in study report): Dichlorophenylphosphine
Analytical purity: 99.08 %
Constituent 1
Results and discussion
Vapour pressureopen allclose all
- Temp.:
- 44.66 °C
- Vapour pressure:
- 1.003 hPa
- Remarks on result:
- other: lowest value measured
- Temp.:
- 20 °C
- Vapour pressure:
- 0.161 hPa
- Remarks on result:
- other: calculated from the regression equation
- Temp.:
- 25 °C
- Vapour pressure:
- 0.241 hPa
- Remarks on result:
- other: calculated from the regression equation
- Temp.:
- 50 °C
- Vapour pressure:
- 1.418 hPa
- Remarks on result:
- other: calculated from the regression equation
Any other information on results incl. tables
Measurement:
Temperature[°C] |
Vapour Pressure [hPa] |
Aberration [%] |
|
Measurement |
Calculation |
||
44.66 |
1.003 |
1.001 |
0.1890 |
55.50 |
2.009 |
2.000 |
0.4300 |
62.37 |
3.012 |
3.012 |
-0.0133 |
74.95 |
6.025 |
6.049 |
-0.4059 |
84.96 |
10.044 |
10.087 |
-0.4263 |
109.06 |
30.119 |
30.192 |
-0.2412 |
126.44 |
60.241 |
60.258 |
-0.0281 |
140.51 |
100.420 |
100.169 |
0.2499 |
175.38 |
301.140 |
299.906 |
0.4096 |
201.40 |
602.670 |
600.964 |
0.2334 |
215.92 |
853.070 |
853.088 |
-2.12E-03 |
223.20 |
1003.780 |
1007.799 |
-0.4004 |
223.4 |
--- |
1013.25 |
--- |
The regression of the results leads with a mean deviation of 0.312 % to the following equation:
ln(p/hPa) = 9,5967 - 4086,26 / (202,94 + t/°C)
The vapour pressure at 20 °C, 25 °C and 50°C was calculated from the regression equation.
The normal boiling temperature was obtained by extrapolation from the vapour pressure curve.
By the end of the test, the color of the test substance had shifted to brown, though decomposition could not be detected by analysis.
Applicant's summary and conclusion
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