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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:
2012-04-26 to 2012-05-08
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Version / remarks:
30 May 2008
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Version / remarks:
adopted 23 March 2006
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
dynamic method
Temp.:
20 °C
Vapour pressure:
9.6 Pa
Temp.:
25 °C
Vapour pressure:
17.7 Pa
Temp.:
50 °C
Vapour pressure:
213.6 Pa

A DCS measurement in a closed glass crucible showed exothermal effects in the temperature range of 150 -275°C and 275 -400°C, and endothermic effects in the range of 140 -210°C with an onset of 187 -188°C (most likely boiling).

The vapour pressure was determined in a temperature range of 63 -134°C and extrapolated to 20, 25 and 50°C.

Temperature [°C]

Vapour pressure [hPa]

63.0

5.5

77.7

15.9

89.7

31.4

99.4

50.4

103.9

61.8

109.8

79.8

115.5

101.9

125.5

150.5

130.5

180.6

133.7

202.2

Conclusions:
The vapour pressure of ETMA is reported to be 9.6 Pa at 20°C, 17.7 Pa at 25°C and 213.6 Pa at 50°C.
Executive summary:

The vapour pressure of ETMA was determined according to OECD guideline 104, adopted 23 March 2006 and EU method A.4, May 2008. ETMA is

reported to have a vapour pressure of 9.6 Pa at 20°C, 17.7 Pa at 25°C and 213.6 Pa at 50°C.

Description of key information

The vapour pressure of ETMA is 9.6 Pa at 20°C (OECD guideline 104/EU method A.4).

Key value for chemical safety assessment

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

Additional information

The vapour pressure of ETMA was determined according to OECD guideline 104, adopted 23 March 2006 and EU method A.4, May 2008.ETMA isreported to have a vapour pressure of 9.6 Pa at 20°C, 17.7 Pa at 25°C and 213.6 Pa at 50°C.