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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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.

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Physical & Chemical properties

Vapour pressure

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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:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: by loss of weight or by trapping vaporisate
Remarks:
isothermal TGA
Temp.:
20 °C
Vapour pressure:
< 0 Pa
Temp.:
25 °C
Vapour pressure:
< 0 Pa

The vapour pressure of the test substance (PT) was determined by the isothermal thermogravimetric effusion method. The method is validated in the range 10E-8 - 10E3 Pa using a set of five reference substances with known vapour pressures (see paragraph 8.5). The validity of the method was verified maximum one month before this study using hexachlorobenzene (>99%, Fluka Chemie, Buchs, Switzerland) as reference control substance. The logarithm of the evaporation rate at 20°C (log vT, 20) deviated

Conclusions:
VP is < 8.4E-7 Pa at 20 °C and < 2.9E-6 Pa at 25 °C
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
GLP compliance:
not specified
Type of method:
gas saturation method
Temp.:
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: Calculated (MPBP v1.40)
Temp.:
100 °C
Vapour pressure:
< 0.007 Pa
Remarks on result:
other: experimental value

Description of key information

The vapour pressure of silver behenate was determined by the isothermal thermogravimetric effusion method and is <0.00000084 Pa. The vapour pressure of 0.000065 Pa is used for the chemical safet assessment of behenate.

Key value for chemical safety assessment

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

Additional information