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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
key study
Study period:
1998
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
Directive 92/69/CEE, A.4 estimation using the Modified Watson Correlation
GLP compliance:
yes (incl. QA statement)
Type of method:
other: estimation Watson
Temp.:
25 °C
Vapour pressure:
< 0 Pa
Remarks on result:
other: Estimated vapour pressure value: 1.22 x 10 Exp.-23 Pa (the lowest possible value was entered in the field above)

The boiling point of FAT 40'571/A (as free acid) was calculated to be about 735 °C using Meissner's method.

 

The vapour pressure of FAT 40'571/A was estimated to be 1.22 x 10-23Pa at 25 °C based on the boiling point calculated and using the Modified Watson Correlation.

Conclusions:
The calculated vapour pressure of FAT 40'571/A was estimated to be 1.22 x 10-23 Pa at 25 °C
Executive summary:

The vapour pressure of FAT 40'571/A was estimated to be 1.22 x 10-23 Pa at 25 °C based on the boiling point calculated and using the Modified Watson Correlation (735 °C as free acid).

Description of key information

The calculated vapour pressure of Reactive Brown 49 was estimated to be 1.22 x 10-23Pa at 25 °C.

Key value for chemical safety assessment

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

Additional information

The vapour pressure of Reactive Brown 49 was estimated to be 1.22 x 10-23 Pa at 25 °C based on the boiling point calculated and using the Modified Watson Correlation (735 °C as free acid).