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Physical & Chemical properties

Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
15-Feb-2010 to 19-Apr-2010
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies,which do not affect the quality of the relevant results.
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. certificate)
Remarks:
Date of Signature on GLP certificate: November 12, 2008
Type of method:
method to determine freezing temperature
Melting / freezing pt.:
-25 °C
Atm. press.:
> 990 - < 1 020 mBar
Remarks on result:
other: study was performed at ambient pressure

A preliminary test was performed to check the approximate freezing temperature of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17.The test item was stored 24.5 hours at
-26 °C in a freezer. As the sample was frozen after this time the freezing temperature of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 is above -26 °C.

 

During the main tests, about 7 mL of the test item placed in a small test tube were cooled down from room temperature to about -25 °C using a dry ice and acetone mixture.

 

At –24.7 °C (1sttest) and –25.2 °C (2ndtest), respectively, the test item was frozen by visual judgement.

Table 1       Determination of the Freezing Point of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 (Summary)

 

Freezing Point

[°C]

[K]

Preliminary test

Above -26 °C

Above 247.2

1stmain test

-24.7

248.5

2ndmain test

-25.2

248.0

Mean value

-25.0

248.3

 

The mean freezing point was calculated from the bold values.

 

The tabulated values represent rounded results, which were obtained by calculation using the exact raw data.

Conclusions:
The freezing point of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 was determined to be -25.0 °C, which is equal to 248.3 K. The estimated accuracy is ± 0.5 K.

Executive summary:
The freezing point of Oxirane, mono[(C12-14-alkyloxy)methyl] derivs. / ERC Nr 17 was determined to be -25.0 °C which is equal to 248.3 K by visual judgement.

Description of key information

The determination of the freezing point / freezing range of the test item was performed according to the EEC Directive 92/69, December 1992 and Council Regulation (EC) No. 440/2008, A.l "Melting/Freezing temperature" and to the OECD Guideline No. 102: "Melting point / melting range", adopted July 27, 1995.  At -24.7 °c (1st test) and -25.2 °c (2nd test), respectively, the test item was frozen by visual judgement.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-25 °C

Additional information