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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2002
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
GLP compliance:
yes
Type of method:
static method
Key result
Temp.:
20 °C
Vapour pressure:
18.4 Pa

The value of the vapour pressure of Lonzabac MP, LZ24643 at 20°C was found to be:

p (20°C) = 18.4 +- 0.4 Pa = (1.38 +- 0.03) x 10-1 mm Hg

Conclusions:
The value of the vapour pressure of Lonzabac MP, LZ24643 at 20°C was found to be p (20°C) = 18.4 +- 0.4 Pa = (1.38 +- 0.03) x 10exp-1 mm Hg.

Description of key information

Key value for chemical safety assessment

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

Additional information

As MMPP is an ionic substance, it is very slightly volatile. Its vapour pressure was calculated to be 4.3 x 10-10Pa at 20°C. The measured value is different from the calculation.

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