3-methylcyclopentadecan-1-one

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:

August 25, 2004

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 with its purity. Therefore full validation applies.

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

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

Deviations:

no

Principles of method if other than guideline:

Not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Swiss GLP compliance programme (inspected on September 09 and 30, 2002/ signed on December 2002)

Type of method:

method to determine freezing temperature

Specific details on test material used for the study:

- Physical state: Colourless liquid
- Storage condition of test material: Refrigerator (between 0 and 10 °C under nitrogen)

Key result

Melting / freezing pt.:

-12 °C

Decomposition:

no

Remarks on result:

other: 261 ± 0.5 K

Table 4.2/1: Determinations 1 and 2

Determination 1 Time (s)	Temperature (K)	Determination 2 Time (s)	Temperature (K)
0	297	0	294
30	293	30	288
60	285	60	284
90	283	90	282
120	278	120	275
150	274	150	274
180	271	180	271
210	268	210	267
240	264	240	265
270	262	270	263
300	261	300	262
330	259	330	261
360	261	360	261
390	261	390	261
420	261	420	261
450	261	450	261
480	261	480	261

Conclusions:

The freezing temperature of test substance has been determined to be -12 ± 0.5 °C (261 ± 0.5 K).

Executive summary:

The freezing point of the test substance was determined according to OECD 102/EU A1 guideline, using BS4633 method for the determination of crystallizing point. The determination was carried out in duplicate and the mean final temperature was retained.

The freezing temperature of test substance has been determined to be -12 ± 0.5 °C (261 ± 0.5 K).

Description of key information

Freezing (i.e. liquid-solid transition) occurs at the temperature of -12 ± 0.5 °C (261 ± 0.5 K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-12 °C

Additional information

A fully reliable experimental study, conducted according to a recognized OECD/EC/BS method and under GLP, is available. It is considered as a key study. The result is retained as key data.