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Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
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 (incl. QA statement)
Type of method:
gas saturation method
Key result
Temp.:
20 °C
Vapour pressure:
0 Pa
Temp.:
40 °C
Vapour pressure:
0 Pa

Preliminary test

sample code temp carrier gas flow rate (mL/min) volume carrier (m3) amount trapped (mg) concentration (mg/m3)
F1 40°C 20 0.144 0.0025 0.017
F2 40°C 30 0.216 0.0043 0.020
F3 40°C 40 0.288 0.0069 0.024
F4 40°C 50 0.360 0.0073 0.020

Definitive test

at 20°C:

Sample ID W (g) V (m3) P (Pa) at 20°C
Te1R1 1.12 x 10-6 0.288 4.46 x 10-5
Te1R2 9.13 x 10-7 0.288 3.63 x 10-5
Te1R3 9.61 x 10-7 0.288 3.82 x 10-5
average 9.99 x 10-7 0.288 3.97 x 10-5
stand dev     0.439 x 10-5

at 40°C:

Sample ID W (g) V (m3) P (Pa) at 20°C
Te2R1 6.40 x 10-6 0.288 2.71 x 10-4
Te2R2 7.41 x 10-6 0.288 3.15 x 10-4
Te2R3 6.50 x 10-6 0.288 2.76 x 10-4
average 6.77 x 10-6 0.288 2.87 x 10-4
stand dev     0.237 x 10-4
Conclusions:
The vapour pressure of the substance at 20°C was found to be 3.97 x 10-5 Pa and at 40°C was 2.87 x 10-4 Pa.
Executive summary:

The vapour pressure of the substance has been determined according to OECD 104, using the gas saturation method. The vapour pressure of the substance is 3.97 x 10 -5 Pa at 20°C and 2.87 x 10 -4 Pa at 40°C.

Description of key information

The vapour pressure of the substance is 3.97x10-5 hPa at 20°C.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
20 °C

Additional information

The vapour pressure of N-n-butylbenzenesulphonamide (Proviplast 024) at 20°C was 3.97 x 10-5 Pa and at 40°C was 2.87 x 10-4 Pa.