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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Remarks:
There were no deviations from the study plan.
Other quality assurance:
other: German Chemicals Act (ChemG), Annex 1 and Directive 2004/10/EC
Type of method:
method to determine freezing temperature
Specific details on test material used for the study:
Batch No.: 0900243308
Melting / freezing pt.:
>= -35 - <= -32 °C
Atm. press.:
>= 988.8 - <= 994.4 mBar
Decomposition:
no
Sublimation:
no

following observations are made during freezing:

Stage A: The sample temperature decreases uniformly.

Stage B: The sample temperature rises suddenly as the test item crystallizes.

Stage C: The sample temperature remains constant for a short time.

Conclusions:
A freezing range according to the criteria of the guidelines could be determined at -32 °C to -35 °C. At the end of the measurement, the test item (Resorcinol diacetate) was solid.
Executive summary:

For Resorcinol diacetate a freezing range at -32 °C to -35 °C was determined.

Description of key information

A freezing range according to the criteria of the guidelines could be determined at -32 °C to -35 °C for Resorcinol diacetate.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-32 °C

Additional information

The atmospheric pressure was 994.4 to 988.8 mbar ( 99 440 - 98 880 Pa).