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Physical & Chemical properties

Melting point / freezing point

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melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
26 Jan-10 Feb 2012
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
Principles of method if other than guideline:
In-house test procedure VTA(S)31X93001.02: "melting temperature determination (Tm) of solid and liquid substances by means of DSC."
GLP compliance:
Type of method:
thermal analysis
differential scanning calorimetry
Melting / freezing pt.:
>= -24 - <= -8 °C
Atm. press.:
ca. 1 013 hPa
Melting / freezing pt.:
-24 °C
Atm. press.:
ca. 1 013 hPa
Remarks on result:
other: crystallization

The test was conducted under atmospheric pressure condition; possible decomposition/sublimation, as well as decomposition/sublimation temperature is not specified.

The test item Alcohols, C10 -12, Ethoxylated (EO < 2.5) shows several endothermic effects of possibly crystalline subcomponents between -24 °C and -8 °C (in the 1. and 2. heating run), which can be attributed to partial melting.

-28 °C - -8 °C (from first measurement)

-29 °C - -8 °C (from second measurement)

-28 °C - -8 °C (from third measurement)

The cooling runs show a crystallization effect at -24 °C.

Additionally, the sample shows a glass transition at -78 °C.

Description of key information

melting range: -28 °C - -8 °C at ca. 1013 hPa (OECD 102, DSC)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-24 °C

Additional information

The melting point of the substance was determined according to OECD Guideline 102 using differential scanning calorimetry. The cooling runs show a crystallization effect at -24 °C (used as key value). Additionally, the sample undergoes a glass transition at -78 °C.