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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
Study period:
May - September 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
1995
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. QA statement)
Type of method:
method to determine freezing temperature
Remarks:
British Standard Method BS4633 - Method for the Determination of Crystallizing Point (1970).
Specific details on test material used for the study:
Batch number: 83100001
Purity: 91.1%
Physical state/appearance: Clear colourless liquid
Expiry date: 11 May 2018
Storage conditions: Room temperature (nominally 15 to 25C), dark
Key result
Melting / freezing pt.:
< -20 °C
Conclusions:
In a preliminary determination, the test item did not solidify as the temperature was decreased from ambient temperature down to below -20°C. No further testing was necessary. The freezing temperature of alpha-Terpinene was determined to be less than -20°C.
Executive summary:

The freezing temperature of alpha-terpinene was determined to be less than -20°C according to the OECD TG 102 and EU Method A.1.

Description of key information

Key study: Test method according to OECD TG 102 and EU Method A.1, GLP study. The freezing temperature of alpha-terpinene was determined to be less than -20°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-20 °C

Additional information