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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:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP study
according to guideline
OECD Guideline 102 (Melting point / Melting Range)
according to guideline
EU Method A.1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. QA statement)
Type of method:
other: differential scanning calorimetry
Melting / freezing pt.:
< -20 °C

The DSC-curve obtained with the first experiment is shown in Figure 4 (attached illustration). During cooling as well as during heating, no effects were observed which were caused by crystallisation and/or melting.

During the second experiment, an internally scratched smaple pan was used in order to facilitate crystalisation. Essentially the same results as during the first experiment were obtained.

Additionally, the test substance was stored overnight in a -20°C freezer in order to determine if crystallization occurs. After storage the test substance had not been crystalized. From this it will be concluded that the melting temperature is < -20°C.

The melting temperature of 2-ethylhexyl-S-lactate is < -20°C.
Executive summary:

The melting temperature of PURASOLV®EHL (2-ethylhexyl-S-lactate) was determined using DSC. The melting temperature of the test substance is -20°C.

Description of key information

At -20 °C ethylhexyl lactate is still liquid. The melting point is therefore given as -20 °C.

Key value for chemical safety assessment

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

Additional information