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Physical & Chemical properties

Vapour pressure

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Endpoint:
vapour pressure
Type of information:
other: technical report, compilation of data
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of method:
other: no data
Temp.:
20 °C
Vapour pressure:
0 mBar
Conclusions:
The vapour pressure of dicyandiamide at 20 °C is 8.5 x 10^-6 mBar.
Executive summary:

The vapour pressure of dicyandiamide at 20 °C is 8.5 x 10^-6 mBar.

Endpoint:
vapour pressure
Type of information:
other: data from OECD SIDS report
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
not specified
GLP compliance:
no
Type of method:
other: no data - OECD SIDS report
Temp.:
100 °C
Vapour pressure:
<= 0 hPa
Conclusions:
Vapour pressure: <= 0.000045 hPa at 100°C
Executive summary:

The information is taken from the OECD SIDS report 2003. The study for vapour pressure (1998) is rated according to Klimisch as 2, valid with restrictions.

The vapour pressure is <= 0.000045 hPa at 100°C.

Description of key information

Because of the substance structure of dicyandiamide, it can be assumed that the vapour pressure of dicyandiamide

can be neglected. This assumption is supported by the vapout pressure values given the technical report from Degussa (2002) and the OECD SIDS report (2003).

Key value for chemical safety assessment

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

Additional information

There are two data sources available (collection of data and OECD SIDS report) indicating that the vapour pressure is negligible low. The technical report states a value of 0.0000085 hPa at 20°C and the OECD SIDS report states a value of 0.000045 hPa at 100°C.