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Physical & Chemical properties

Boiling point

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Administrative data

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Qualifier:
no guideline available
Principles of method if other than guideline:
Value taken from an acceptable handbook. No details on method and guideline available.
GLP compliance:
no
Type of method:
other: Handbook data
Boiling pt.:
ca. 195 °C
Atm. press.:
ca. 101.3 kPa
Decomposition:
no
Conclusions:
The boiling point of DVB-55 is 195°C at normal pressure.
Executive summary:

The boiling point of DVB-55 is 195°C at normal pressure.

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
19 December 2009 and 09 February 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Deviations:
no
GLP compliance:
yes
Remarks:
Date of GLP inspection: 15 September 2009 Date of Signature on GLP certificate: 26 November 2009
Type of method:
differential scanning calorimetry
Boiling pt.:
K
Atm. press.:
98.54 Pa
Decomposition:
no
Remarks on result:
other: determined to polymerise from 418 K

Thermographic data for determinations 1 and 2 are shown in the following tables.

Determination 1 

Thermal Event

Interpretation

Temperature

ºC

K

Exotherm

Onset of polymerisation

160

433

Atmospheric pressure: 98.54 kPa

Determination 2 

Thermal Event

Interpretation

Temperature

ºC

K

Exotherm

Onset of polymerisation

145

418

Atmospheric pressure: 98.54 kPa


Overall result: polymerised from 418 K

As the test material polymerised prior to boiling, no value for the boiling point could be determined.

See attachment 1 for thermograms.

Conclusions:
The test material has been determined to polymerise from 418 K at 98.54 kPa. As the test material polymerised prior to boiling, no value for boiling point could be determined.
Executive summary:

Boiling Point.  The test material polymerised from 418 K at 98.54 kPa, by differential scanning caloritry, using ASTM E537-86, Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995. As the test material polymerised prior to boiling, no value for boiling point could be determined.

Description of key information

Boiling point of DVB-55 = 195°C

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
468 K

Additional information

DVB-HP has been determined to polymerise from 418 K at 98.54 kPa. As the test material polymerised prior to boiling, no value for boiling point could be determined for this grade of the reaction mass.