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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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: guidline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2014
Report date:
2014

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
no
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Chemical structure
Reference substance name:
Methylurea
EC Number:
209-935-0
EC Name:
Methylurea
Cas Number:
598-50-5
Molecular formula:
C2H6N2O
IUPAC Name:
methylurea
Details on test material:
- Name of test material (as cited in study report): Methylharnstoff
- Analytical purity: pure
- Lot/batch No.: 369041AX20

Results and discussion

Vapour pressureopen allclose all
Temp.:
23.3 °C
Vapour pressure:
0.005 Pa
Remarks on result:
other: measured value
Temp.:
20 °C
Vapour pressure:
0.003 Pa
Remarks on result:
other: extrapolated value

Any other information on results incl. tables

Results in detail:

 

Temperatur

Druck(experimentell)

Druck (calculated)

Abw.

t/°C

p/hPa

p/hPa

%

20,0

--

3,11e-05a)

--

23,3

4,58e-05

4,71e-05

-2,74

23,3

4,84e-05

4,71e-05

2,78

33,3

1,53e-04

1,56e-04

-1,85

33,3

1,59e-04

1,56e-04

2,00

48,0

7,91e-04

7,84e-04

0,90

48,0

7,76e-04

7,84e-04

-1,01

50,0

--

9,65e-04b)

--

55,0

--

1,60e-03b)

--

58,5

2,20e-03

2,26e-03

-2,80

58,5

2,33e-03

2,26e-03

2,94

a) extrapolated value b) interpolated value

Applicant's summary and conclusion