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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:
25 Jul 2014
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. QA statement)
Ministerium für Arbeit, Integration und Soziales des Landes Nordhein-Westfalen.
Type of method:
thermal analysis
Differential Scanning Calorimetry
Melting / freezing pt.:
-8 °C
Atm. press.:
1 013 hPa


The DSC measurements were performed twice with slow controlled cooling rates (2 K/min).

The heat flow curve showed a sharp endothermic peak with a maximum temperature at -5 °C caused by melting. Its extrapolated onset temperature (-8.02 °C and -8.41 °C respectively) indicates the melting temperature; rounded mean value: -8 °C.

After the measurements the sample had lost 0.1/0% (by mass) of its original mass. The residue inside the crucible looked unchanged, it was colourless and liquid.

The melting temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 102 (adopted on 27 July 1995) and EU Method A.1 “Melting/freezing temperature”, Council Regulation (EC) No 440/2008 of 30 May 2008.  

Melting temperature: -8 °C

A melting point value of -8°C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

Triethoxyhexadecylsilane: -8°C at 1013 hPa (measured)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-8 °C

Additional information

A melting point value of -8 °C (at 1013 hPa) was determined by differential scanning calorimetry according to EU Test Method A.1.