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Physical & Chemical properties

Vapour pressure

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Administrative data

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Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
other information
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: guidance followed, no GLP
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Principles of method if other than guideline:
no
GLP compliance:
no
Type of method:
static method
Remarks:
NF T 20-048 AFNOR Sept.85
Temp.:
ca. 20 °C
Vapour pressure:
ca. 0.22 Pa
Remarks on result:
other: Results are out of range of method
Transition / decomposition:
yes
Transition temp.:
ca. 284.6 °C
Vapour pressure at 10°C above transition temperature:
18.3 Pa
Vapour pressure at 20°C above transition temperature:
26.8 Pa

Linear equation: log p = -3025.3*(1/T)+9.6647

Scope: from 280 to 377 °C

Accuracy: <10%

Nature of the change during measuring: none

Nature of the change for estimate: transition liquid-solid

Temperature of transition: 284.6 °C

Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1987
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: peer reviewed article - HSDB database
Qualifier:
no guideline available
Principles of method if other than guideline:
no data
GLP compliance:
no
Type of method:
other: not available
Temp.:
ca. 25 °C
Vapour pressure:
ca. 0 Pa

Vapor Pressure:

 

1.16X10-7 mm Hg @ 25 deg C

[Shimizu T et al; J Soc Dyers Colour 103: 132-7 (1987)]**PEER REVIEWED**

Description of key information

0.22 Pa at 20°C (measured data)
1.16E-07 mmHg at 25°C equal to 1.55E-05 Pa at 25°C (literature data)

Key value for chemical safety assessment

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

Additional information

Measured value was extrapolated without taking the transitional change solid - liquid into account. Literature data reflect the reality better.