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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Principles of method if other than guideline:
no data
GLP compliance:
not specified
Type of method:
other: no data
Melting / freezing pt.:
ca. 49.2 - ca. 51.5 °C
Remarks on result:
other: pressure not reported
Conclusions:
The melting point of thymol is in the range of 49.2 - 51.5°C.
Executive summary:

Thymol is a substance described in Beilstein's database, which covers the scientific literature and contains experimentally validated information on millions of chemical reactions and substances from original scientific publications. Thymol with handbook registry number of 1907135 has a melting point in the range of 49.2 - 51.5°C.

Description of key information

Thymol is a substance described in Beilstein's database, which covers the scientific literature and contains experimentally validated information on millions of chemical reactions and substances from original scientific publications. Thymol with handbook registry number of 1907135 has a melting point in the range of 49.2 - 51.5°C (Beilstein, 2009).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
49.2 °C

Additional information

The melting point in the range of 49.2 - 51.5 °C indicated for thymol in the key study is supported by many other literature data in various collections of data. The values stated are all in the above mentioned range.

For the chemical safety assessment as key value the lowest indicated value of 49.2 °C was chosen, as this value is a kind of worst-case value, because a lower melting point e.g. affects the vapour pressure. A pressure was not reported for the melting point values, but this does not affect the results. It can be assumed, that the determinations were carried out at room conditions with atmospheric pressure of about 1013 hPa.