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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10 JUN 2009 to 09 JUL 2009
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Guideline study (OECD 104)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

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)
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Reference substance name:
Reaction mass of Fatty acids, montan-wax and Fatty acids, montan-wax, 1-methyl-1,3-propanediyl esters and Fatty acids, montan-wax, calcium salts and Montan wax
EC Number:
914-460-3
IUPAC Name:
Reaction mass of Fatty acids, montan-wax and Fatty acids, montan-wax, 1-methyl-1,3-propanediyl esters and Fatty acids, montan-wax, calcium salts and Montan wax
Details on test material:
- Name of test material (as cited in study report): Licowax OP
- Physical state: Solid (light yellow flakes)
- Analytical purity: 100% (w/w)
- Storage condition of test material: Room temperature

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
0 Pa

Any other information on results incl. tables

The vapour pressure was measured in the temperature range of 22 °C to 93 °C. Above 47 °C a vapour pressure could be measured. The measured vapour pressures at the corresponding temperatures are listed in the following table:

Temperature / °C

Vapour pressure / hPa

47.0

8.5 x 10-6

49.9

1.1 x 10-5

54.3

1.4 x 10-5

57.5

2.3 x 10-5

61.3

3.5 x 10-5

64.0

4.3 x 10-5

70.5

8.2 x 10-5

75.8

1.3 x 10-4

81.3

2.1 x 10-4

85.6

2.7 x 10-4

93.2

4.0 x 10 -4

A curve is shown that gives the vapour pressure (Iogarithmic scale) as a function of the inverse temperature (1/T, T in Kelvin). For better readability the temperature is reported in a centigradescale. The values for 20, 25 and 50 °C are calculated, using the Antoine constants A, B and C.

T / °C

p/ hPa

log (p/hPa) = A + B/(C+T[°C])

20

4.36E-07

A = 8.86553

25

7.85E-07

B = -4463.46

50

1.13E-05

C = 273.15

 Final Results

Vapour Pressure

The calculated vapour pressure values are extrapolated:

T / °C

p / hPa

p / Pa

20

4.4 x 10-7

4.4 x 10-5

25

7.9 x 10-7

7.9 x 10-5

50

1.1 x 10-5

1.1 x 10-3

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test substance is 0.000079 Pa at 25 °C.
Executive summary:

The vapour pressure of the test substance was determined in a guideline study (OECD TG 104). The vapour pressure is 0.000079 Pa at 25 °C.