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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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