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Physical & Chemical properties

Boiling point

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Administrative data

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2001
Report Date:
2001

Materials and methods

Test guideline
Qualifier:
equivalent or similar to
Guideline:
other: OECD 104
Principles of method if other than guideline:
dynamic under nitrogen
GLP compliance:
no
Type of method:
dynamic method

Test material

Reference
Name:
Unnamed
Test material form:
solid
Details on test material:
- State of aggregation: white, homogeneous melt
- Chemical name: Phthalid, 1 ( 3 H)-Isobenzofuranon

Results and discussion

Boiling point
Key result
Boiling pt.:
291.56 °C
Atm. press.:
1 013.25 hPa
Remarks on result:
other: extrapolation from the vapour pressure curve.

Any other information on results incl. tables

Results:

Temperature

[°C]

Vapour pressure (measurement)

[hPa]

Vapour pressure (calculationb))

[hPa]

Aberration

[%]

93.31

1.00

1.000

0.01

105.18

1.95

1.949

0.03

113.87

3.08

3.081

-0.05

123.97

5.09

5.091

-0.03

131.06

1.77

7.115

-0.07

138.91

10.12

10.141

-0.21

155.13

20.17

20.084

0.43

165.55

30.24

30.179

0.20

179.45

50.33

50.181

0.30

189.44

70.42

70.714

-0.42

200.37

10.39

100.912

-0.52

223.3

200.6

200.38

0.11

238.1

300.4

300.24

0.05

258.3

501.0

499.70

0.26

272.8

701.5

701.13

0.05

289.7

1012.8

1014.46

-0.16

291,56

-

1013.25

-

The regression of the results leads with a mean deviation of 0.166 % to the following equation:

ln(p/hPa) = 10.0846 - 2855.25 / (215.84 + t/°C)

The vapour pressure at 20 °C, 25 °C and 50°C was not calculated from the regression equation, since the melting point is on the regression equation

The normal boiling temperature was obtained by intrapolation/extrapolation from the vapour pressure curve.

Applicant's summary and conclusion