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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study according to international guideline (OECD guideline 104) under GLP. Some deviations from guideline.
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
yes
Remarks:
see overall remarks
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Deviations:
no
Principles of method if other than guideline:
Not relevant
GLP compliance:
no
Type of method:
spinning rotor
Temp.:
20 °C
Vapour pressure:
0.001 Pa
Remarks on result:
other: standard deviation: 2.04 x 10^-4 Pa

The offset value was 9.6645 x 10 -8 s-1 at 20°C. This value was based on the average deceleration rate measured with an empty sample chamber. The mean measured background vapor pressure of the system by the SRG method was 4.24 x 10 -5 Pa at 20°C.

The mean measured vapor pressure of hexachlorobenzene by the SRG method was 1.14 x 10-3Pa at 20°C. The vapor pressures were consistent with published values.

Conclusions:
The vapor pressure of Phosflex 61B is 1.08 x 10^-3 Pa at 20 degrees Celsius.
Executive summary:

The vapor pressure of Phosflex 61B was determined using the spinning rotor gauge method according to OECD guideline 104 / OPPTS 830.7950 under GLP. The vapor pressure of Phosflex 61B was found to be 1.08 x 10^-3 Pa at 20 degrees Celsius.

Description of key information

The vapour pressure of Phosflex 61B was determined to be 0.00108 Pa at 20°C.

Key value for chemical safety assessment

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

Additional information

In a key study, the vapor pressure of Phosflex 61B was determined using the spinning rotor gauge method according to OECD guideline 104 / OPPTS 830.7950 under GLP. The vapor pressure of Phosflex 61B was found to be 0.00108 Pa at 20°C.