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The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

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:
27/02/2012-23/05/2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP comparable to OECD guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Principles of method if other than guideline:
/
GLP compliance:
yes
Type of method:
spinning rotor
Temp.:
20 °C
Vapour pressure:
0 Pa

The offset value (mean DCR) was 3.0562 x 10-7 s-1 at 20 ± 1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 2.22 x 10-5 Pa at 20 ± 1°C.

The mean measured vapor pressure of the reference substance, hexachlorobenzene, by the SRG method was 1.37 x 10-3 Pa at 20 ± 1°C. The vapor pressure was consistent with published values.

The system offset pressure using a weighted average molecular weight of 803 g/mol was 1.4659 x 10-4 Pa at 20 ± 1°C. The mean measured vapor pressure of Brominated Epoxy, using a weighted average molecular weight of 803 g/mol, by the SRG was 1.43 x 10-5 Pa at 20 ± 1°C, which was below the recommended reporting range of the spinning rotor gauge method.

Conclusions:
The mean vapor pressure for Brominated Epoxy at 20 ± 1°C was less than the recommended reporting range of the spinning rotor gauge method (1 x 10-4 Pa).
Executive summary:

The mean vapor pressure for Brominated Epoxy at 20 ± 1°C was less than the recommended range of the spinning rotor gauge method (1 x 10-4 Pa).

Description of key information

Vapor pressure of Brominated Epoxy having Epoxy Equivalent of 400 gr/eq 

Key value for chemical safety assessment

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

Additional information

Vapor pressure was determined at 20 ± 1°C using the spinning rotor gauge method.

The mean vapor pressure for Brominated Epoxy at 20 ± 1°C was less than the recommended reporting range of the spinning rotor gauge method (1 x 10-4 Pa).