Decanoic acid, mixed esters with heptanoic acid, octanoic acid and pentaerythritol

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:

20 Feb. 2017 to 23 Feb. 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

OECD Guideline for the Testing of Chemicals No. 102 dated 27. July 1995 “Melting Point / Melting Range“

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Version / remarks:

EU-Method A.1, dated 31. May 2008, “Melting/Freezing Temperature”

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

No further details specified in the study report.

Key result

Melting / freezing pt.:

-23.62 °C

Decomposition:

no

Sublimation:

no

Remarks on result:

other: Atm. pressure not specified.

Pre-Test

The following values were recorded:

Room Temperature	3.9 °C	-20.8 °C	-80 °C
Clear, slightly yellow liquid	Liquid	Frozen, melted immediately	Frozen and turbid

 

DSC Measurement of the Test Item

Values DSC Test Item first determination

	Temperature [°C]	Energy
Melting Point [°C]	-23.51 (Onset)	52.16 [J/g]

 

Values DSC Test Item second determination

	Temperature [°C]	Energy
Melting Point [°C]	-23.73 (Onset)	52.86 [J/g]

 

 

Observations

	Mass test item	Mass crucible (before measurement):	Mass crucible (after measurement):	Observations
First Measurement	2.58 mg	34.85 mg	34.85 mg	After the test the crucible was visual unchanged
Second Measurement	See above	See above	34.86 mg	After the test the crucible was visual unchanged

 

Presentation of results

Melting Point	In °C	in K
First determination	-23.51	249.64
Second determination	-23.73	249.42
Mean	-23.62	249.53
Standard deviation	0.16	0.16

 

Conclusions:

The determination of the melting point Hatcol 3178 was performed via DSC (differential scanning calorimetry. In all runs one event was detected.
The event is endotherm and is stated as the melting point.
The results of the study should be stated as followed:
-23.62 ± 0.16 °C (249.53 ± 0.16 K).
No observations were made which might cause doubts on the validity of the study outcome.
Therefore, the result of the study is considered valid.

Executive summary:

The study was performed in order to determine the melting point or the melting range of the test item Hatcol 3178. The freezing/melting point is one of the fundamental physicochemical properties of a chemical substance. The test item was cooled from room temperature to - 65 °C and then heated again to room temperature with a defined heating rate using a differential scanning calorimeter (DSC). The heat flow and any thermal events were recorded.

 

The melting point was determined via DSC (differential scanning calorimetry)

The melting point was determined to be

-23.62 ± 0.16 °C (249.53 ± 0.16 K).

These values are the means of two independent determinations.

Description of key information

The melting point was determined to be

-23.62 ± 0.16 °C (249.53 ± 0.16 K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-23.62 °C

Additional information

The melting point was determined via DSC (differential scanning calorimetry)

The melting point was determined to be

-23.62 ± 0.16 °C (249.53 ± 0.16 K).

These values are the means of two independent determinations.