Oxirane, mono[(C12-14-alkyloxy)methyl] derivs.

Melting point / freezing point

Link to relevant study record(s)

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

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

yes (incl. QA statement)

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 (1^sttest) and –25.2 °C (2^ndtest), 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
1^stmain test	-24.7	248.5
2^ndmain 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