1,5,10-trimethylcyclododeca-1,5,9-triene, epoxidised

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:

November 14 to 22, 2007

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised method, and under GLP. The substance is considered to be adequately characterised. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

adopted by the Council on 27th July 1995

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: BS4633: Method for the Determination of Crystallizing Point

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Swiss GLP compliance programme (inspected on November 15 and 16, 2006/ signed on March 29, 2007)

Type of method:

method to determine freezing temperature

Melting / freezing pt.:

< -20 °C

Decomposition:

no

Remarks on result:

other: < 253 ± 0.5 K

Table 4.2/1: Determinations 1 and 2

Determination 1 Time (s)	Temperature (K)	Determination 2 Time (s)	Temperature (K)
0	299	0	299
30	296	30	295
60	292	60	291
90	289	90	289
120	285	120	288
150	283	150	286
180	281	180	283
210	277	210	282
240	272	240	279
270	270	270	278
300	268	300	277
330	266	330	275
360	265	360	274
390	263	390	273
420	261	420	271
450	259	450	272
480	257	480	271
510	255	510	271
540	253	540	271
570	252	570	270
600	251	600	271
630	251	630	261
660	250	660	260
690	250	690	260
720	250	720	259
750	249	750	259
780	-	780	258
810	-	810	256
840	-	840	256
870	-	870	255
900	-	900	253
930	-	930	252
960	-	960	251
990	-	990	250
1020	-	1020	250

 

Observations: Test substance remained unchanged in appearance during cooling.

The freezing temperature of test substance has been determined to be < -20 ± 0.5 °C (< 253 ± 0.5 K).

Conclusions:

The freezing point of test item was stated as < - 20 °C (< 253.15 K). No further testing is required.

Executive summary:

The freezing point of the test substance was determined under GLP according to OECD 102 / EU A1 guideline,using a procedure based on BS4633: Method for the Determination of Crystallizing Point.The determination was carried out in duplicate and no freezing was observed at the minimum test temperature.

 

The freezing temperature of test substance has been determined to be less than < 253 ± 0.5 K (< -20 ± 0.5 °C).

Description of key information

Freezing point  < -20 ± 0.5 °C (<253 ± 0.5 K)

No further testing required.

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC method and under GLP, is available. It is considered as a key study. As no crystallisation was observed down to -20°C, the result is expressed as a limit value, and cannot be retained as key data for purpose of CSA.