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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:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report Date:
1996

Materials and methods

Test guideline
Guideline:
other: according to 92/69/EWG,AnnexV, A.4
GLP compliance:
yes (incl. certificate)
Type of method:
dynamic method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Name of test material (as cited in study report): 625-Triketon
Analytical purity: 99.4g/100g
Lot/batch No.: LJ 27881/1

Results and discussion

Boiling pointopen allclose all
Decomposition:
yes
Decomp. temp.:
> 284.7 °C
Boiling pt.:
270.12 °C
Atm. press.:
30.06 hPa

Any other information on results incl. tables

The normal boiling temperature can be due to thermal decomposition of the test substance from284.7 °C not be determined.

According to the measured vapor pressure curve the boiling temperature at 30.06 hPa is 270.12 ° C. Results:
Temperature
[t/°C]
Vapour Pressure
[p/hPa]
  Measurement Calculation
188.3 1.00 1.00
202.49 2.00 2.01
211.36 3.00 3.01
223.12 5.01 5.01
231.28 7.01 7.01
240.24 10.01 10.00
258.79 20.04 20.08
270.12 30.06 30.13
284.71 50.06 50.03

From 284.7 ° C (p = 50 hPa) the constant falling of ca. 6°C/min of the boiling temperature despite of increasing the heating power

and strong fog at the cooler shows a thermally induced change towards the test substance used. The normal boiling point can not be determined for this reason.

Applicant's summary and conclusion