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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 2g: data from handbooks
Principles of method if other than guideline:
no data in CRC handbook
Guideline DIN 51 597 cited in BUA report
GLP compliance:
not specified
Type of method:
pour point
Melting / freezing pt.:
-55 °C

data cited in a reference handbook (cf R7 guidance document) we assume that it is a value measured at atmospheric pressure).

Conclusions:
DEHP melting point given by two different handbooks (CRC and Bua report) is -55°C
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: 2.g: Data from Handbook.
Principles of method if other than guideline:
No data
GLP compliance:
not specified
Melting / freezing pt.:
-50 °C

data cited in a reference handbook (cf R7 guidance document) we assume that it is a value measured at atmospheric pressure)

Conclusions:
In the present handbook, the value of -50 °C for melting point is reported for the DEHP.
Executive summary:

In the present handbook, the value of -50 °C for melting point is reported for the DEHP.

This value was selected in the Risk Assessment Report (final report 2008).

Description of key information

Melting point: from -55°C to -50°C (from 218.15 to 223.15 K), at atmospheric pressure.

Key values used in a weight of evidence approach have been selected in previous Risk Assessment Report, 2008.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-50 °C

Additional information

Three values have been cited in various review articles and handbooks.

Data selected for a weight of evidence approach: -50 °C and - 55°C (data from reference handbooks according to R7 guidance document).

Data from supportive study: -47°C; Data from supportive study: -47°C (data cited in a review article without more details on method or origin, therefore considered as a supportive data but will not be inclueded in the weight of evidence approach.)