Bis(2-ethylhexyl) malate

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

22 November 2017 to 03/04/2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

27 July 1995

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Bis(2-ethylhexyl) malate

EC Number:

260-070-5

EC Name:

Bis(2-ethylhexyl) malate

Cas Number:

56235-92-8

Molecular formula:

C20H38O5

IUPAC Name:

1,4-bis(2-ethylhexyl) 2-hydroxybutanedioate

Test material form:

liquid

Details on test material:

Identification: Dermol DOM
Appearance: Clear colourless to pale yellow liquid
Batch: P7677
Purity/Composition: >95%
Test item storage: At room temperature
Stable under storage conditions until: 31 December 2018 (retest date)
Additional information
Test Facility test item number: 209081/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Molecular structure: Not indicated
Molecular formula: C20H38O5
Molecular weight: 358.5

Specific details on test material used for the study:

Identification: Dermol DOM
Appearance: Clear colourless to pale yellow liquid
Batch: P7677
Purity/Composition: >95%
Test item storage: At room temperature
Stable under storage conditions until: 31 December 2018 (retest date)

Additional information
Test Facility test item number: 209081/A
Purity/Composition correction factor: No correction factor required
Test item handling: No specific handling conditions required
Molecular structure: Not indicated
Molecular formula: C20H38O5
Molecular weight: 358.5

Results and discussion

Melting / freezing point

Key result

Melting / freezing pt.:

< 193 K

Atm. press.:

ca. 1 013 hPa

Decomposition:

no

Any other information on results incl. tables

Main study

The DSC curve obtained with Experiment 1 is shown inFigure 2. During cooling, no effect were found (results are archived in the raw data).

An additional investigation of the melting temperature of the test item was performed placing two subsamples of the test item for 21 hours at -19.2 ± 0.4°C and at -83.6 ± 1.8°C respectively. It was observed after storage that the test item was a viscous liquid (≤ ‑20°C freezer) and a very viscous liquid (≤ -80°C freezer). According to this it was concluded that the melting temperature of the test item is < -80°C (< 193K).

Applicant's summary and conclusion

Conclusions:

The melting / freezing point of the test substance (Dermol DOM) was found to be <193 K at 1013 hPa, under the conditions of the test (DSC).

Executive summary:

In this guideline (OECD 102) study, [conducted with GLP certification], the melting point of the test substance (EC 260-070-5) was found to be < 193 K at 1013 hPa.