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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Data is from handbook
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
Determination of the vapor pressure of test chemical at various temperatures using ebulliometry
GLP compliance:
not specified
Type of method:
other: ebulliometry
Key result
Test no.:
#1
Temp.:
196 °C
Vapour pressure:
59 995 Pa
Remarks on result:
other: no other details mentioned
Test no.:
#2
Temp.:
219 °C
Vapour pressure:
101 325 Pa
Remarks on result:
other: no other details mentioned

Table: Ebulliometry

Temperature (in deg C)

Pressure (Pa)

84

1333

105.6

3333

124

6666

135.2

9999

144

13332

157

26664

174

33330

180.2

39997

183.6

43330

186.1

46663

191.0

53329

196.0

59995

200.0

66661

203.9

73327

207.0

79993

210.1

86659

213.5

93325

219.0

101325

Conclusions:
The vapor pressure of test chemical at various temperatures using ebulliometry. The experimental vapor pressure at 196°C was 59995 Pa
Executive summary:

The vapor pressure of test chemical at various temperatures using ebulliometry. The experimental vapor pressure at 196°C was 59995 Pa and 101325 Pa at 219°C.

The vapor pressure at 219°C was 101325 Pa (i.e atmospheric pressure), which indicates that the boiling point of test chemical was 219°C.

Description of key information

On the basis of data from handbook, the vapor pressure of test chemical at various temperatures using ebulliometry. The experimental vapor pressure at 196°C was 59995 Pa and 101325 Pa at 219°C. The vapor pressure at 219°C was 101325 Pa (i.e atmospheric pressure), which indicates that the boiling point of test chemical was 219°C.

Key value for chemical safety assessment

Vapour pressure:
59 995 Pa
at the temperature of:
25 °C

Additional information

On the basis of data from handbook, the vapor pressure of test chemical at various temperatures using ebulliometry. The experimental vapor pressure at 196°C was 59995 Pa and 101325 Pa at 219°C. The vapor pressure at 219°C was 101325 Pa (i.e atmospheric pressure), which indicates that the boiling point of test chemical was 219°C.

In a supporting study, the vapor pressure of test chemical at various temperatures using gas saturation. The experimental vapor pressure at 24.71°C was 3.640 Pa

Additional study from authoritative database indicates the vapor pressure of test chemical at 25°C as 11.9 Pa.

In a supporting study from reliable source, the Antoine Coefficients and Antoine equation were used to calculate the vapour pressure of test chemical. The calculated vapor pressure of test chemical was at 14.30°C, 4899852.651 Pa at 449.80°C.

MPBVP v1.43 was used to estimate the vapor pressure of test chemical. The estimated vapor pressure of test chemical at 25°C was 3.24 Pa