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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

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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.)