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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:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Scientifically verified data without statement concerning analytical purity

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
GLP compliance:
no
Type of method:
effusion method: vapour pressure balance

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-dimethyl-2,2'-azodipropiononitrile
EC Number:
201-132-3
EC Name:
2,2'-dimethyl-2,2'-azodipropiononitrile
Cas Number:
78-67-1
Molecular formula:
C8H12N4
IUPAC Name:
2,2'-diazene-1,2-diylbis(2-methylpropanenitrile)
Test material form:
solid: particulate/powder

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0.009 hPa
Temp.:
30 °C
Vapour pressure:
0.025 hPa
Temp.:
46 °C
Vapour pressure:
0.077 hPa
Remarks on result:
other: decomposition occur by vapour pressure reduction

Any other information on results incl. tables

With increasing residence time, decrease of  vapour pressure is detected.

Applicant's summary and conclusion