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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
The main study was not conducted as preliminary tests indicated that no freezing process occurs under the given conditions.
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
not specified
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
< -50 °C
In conclusion, the freezing point range of 3-methoxy-3-methyl-butan-1-ol is < -50°C (<223 K).
melting point/freezing point
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:

Description of key information

Melting/freezing point: < -50°C

Key value for chemical safety assessment

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

Additional information

Freezing point ranges of < -50°C are reported in a reliable study conducted according to an appropriate test protocol.

In accordance with Column 2 of REACH Annex VII, the melting point study does not need to be conducted below a lower limit of -20°C. The existing data is sufficient to indicate a melting point well below this temperature.