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Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2014-05-21 - 2014-11-13
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline 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)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
dynamic method

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethyl dihydrogen phosphate
EC Number:
216-603-9
EC Name:
Ethyl dihydrogen phosphate
Cas Number:
1623-14-9
Molecular formula:
C2H7O4P
IUPAC Name:
Phosphoric acid,monoethyl ester
Test material form:
liquid
Specific details on test material used for the study:
Test item:Hordaphos MDE
Synonym:phosphoric acid ethyl ester, ethyl phosphate
Content:99.2 % (sum of main components)
Physical state:colourless to brownish clear viscous liquid
CAS-No.:37203-76-2
EINECS-No.:253-391-7

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
80.9 °C
Vapour pressure:
30.9 hPa
Key result
Test no.:
#2
Temp.:
126.2 °C
Vapour pressure:
194.6 hPa
Key result
Test no.:
#3
Temp.:
143.7 °C
Vapour pressure:
320 hPa
Key result
Test no.:
#4
Temp.:
163 °C
Vapour pressure:
510 hPa
Key result
Test no.:
#5
Temp.:
20 °C
Vapour pressure:
3.5 hPa
Key result
Test no.:
#6
Temp.:
50 °C
Vapour pressure:
14.2 hPa
Key result
Test no.:
#7
Temp.:
25 °C
Vapour pressure:
4.5 hPa

Applicant's summary and conclusion

Conclusions:
The vapour pressure was measured with the dynamic method in the temperature range of 81 °C to 163 °C.
The calculated vapour pressure values are extrapolated:
T/°C p/hPa P/Pa
20 3.5 347
25 4.5 447
50 14.2 1424

Executive summary:

The vapour pressure was measured with the dynamic method in the temperature range of 81 °C to163 °C.

The calculated vapour pressure values are extrapolated:

T/°C

p/hPa

P/Pa

20

3.5

347

25

4.5

447

50

14.2

1424