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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
March 23, 2006
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
static method
Key result
Test no.:
#1
Temp.:
25 °C
Vapour pressure:
< 133 Pa
Vapour pressure:
< 133 Pa

Table 1: Results







































Test Temperature (°C)Vapor pressure
Measured valueConverted value1
25<1 mmHg<133 Pa
<1 mmHg<133 Pa
<1 mmHg<133 Pa
50<1 mmHg<133 Pa
<1 mmHg<133 Pa
<1 mmHg<133 Pa 

1 1 mmHg = 133 Pa

Conclusions:
The vapor pressure was determined to be <133 Pa as the vapor pressure was lower than the limit of detection for the method.

Description of key information

In a study conducted in accordance with OECD Guideline 104, the substance's vapour pressure was determined using the static method.


The melting point range was determined to be: 


<133 Pa at 25°C 

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

The substance is a solid powder and therefore vapour pressure is expected to be negligible.  For the risk assessment, a value of 1E-06 is seem appropriate as the vapour pressure test did yield a precise measurement.