Bis(2-ethylhexyl) malate

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

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:

EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))

Version / remarks:

Council Regulation 440/2008, 30 May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Other quality assurance:

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

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

Auto-ignition temperature (liquids / gases)

Key result

Auto-ignition temperature:

325 °C

Atm. press.:

1 002 hPa

Any other information on results incl. tables

Results                   

Preliminary test

The estimated auto-ignition temperature was 365°C.

Main study

The results of the main study on the determination of the auto-ignition temperature of the test item are given inTable 6.

Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 20°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 328°C. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 325°C.

Table 6          
Auto-ignition Temperature of the Test Item

Test	Volume [μL]	Auto-ignition temperature [°C]	Ignition delay [s]	Colour of the flame	Minimum auto-ignition temperature [°C]
1	70	361	7	yellow/orange	328
	150	349	8	orange/blue
	300	342	14	yellow/orange
	550	341	5	yellow/orange
	800	328	7	orange/blue
	1000	355	6	orange/blue
2	700	345	8	orange/blue	344
	750	344	7	orange/blue
	900	350	7	orange/blue
3	200	352	7	orange/blue	345
	780	345	7	yellow/orange
	860	348	7	orange/blue

Applicant's summary and conclusion

Conclusions:

The auto-ignition temperature of the test substance was found to be 325 °C at 1002 hPa, under the conditions of the test.

Executive summary:

In this guideline (EU A.15) study, [conducted with GLP certification], The auto-ignition temperature of the test substance was found to be 325 °C at 1002 hPa.