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Melting point / freezing point

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Endpoint:
melting point/freezing 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 or guideline are avaialble.
GLP compliance:
not specified
Type of method:
other: Handbook data
Melting / freezing pt.:
-45 °C
Atm. press.:
101.3 kPa
Decomposition:
no
Sublimation:
no
Conclusions:
The melting point of DVB-55 is ca. -45°C at standard atmospheric pressure (101325 Pa).
Executive summary:

The melting point of DVB-55 is ca. -45°C at standard atmospheric pressure (101325 Pa).

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
19 December 2009 to 09 February 2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting 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:
pour point
Melting / freezing pt.:
< 253 K
Atm. press.:
101.3 kPa
Decomposition:
no
Sublimation:
no

The measured stationary points are shown in the following table.

Measurement

Determination 1

Determination 2

Stationary point (K)

< 250

< 250

Pour point (K)

< 253

< 253

Mean pour point: < 253 ± 3 K.

Conclusions:
The pour point of the test material has been determined to be less than 253±3 K.
Executive summary:

The pour point was less than 253±3 K, using BS 2000: Part 15 (equivalent to ISO 3016), Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

Description of key information

Melting point of DVB-55 = -45°C

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
228 K

Additional information

The melting point for DVB-55 and DVB-HP were both determined to be below -20°C.