Butanedioic acid, 2-hydroxy-, 1,4-bis[5,7,7-trimethyl-2-(1,3,3-trimethylbutyl)octyl] ester

Auto flammability

Administrative data

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-04-16

Reliability:

1 (reliable without restriction)

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

1,4-bis[2-(4,4-dimethylpentan-2-yl)-5,7,7-trimethyloctyl] 2-hydroxybutanedioate

EC Number:

807-422-1

Cas Number:

66918-01-2

Molecular formula:

C40H78O5

IUPAC Name:

1,4-bis[2-(4,4-dimethylpentan-2-yl)-5,7,7-trimethyloctyl] 2-hydroxybutanedioate

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

390 °C

Atm. press.:

990 hPa

Remarks on result:

other:

Any other information on results incl. tables

The instrument was checked before the start of the experiment measuring the autoignition temperature of n-Hexane as Reference Material. The measured auto-ignition temperature of n-Hexane is 238 °C.

Determination of auto-ignition temperature of test item:

Temperature(Flask inside)	External Temperature	Ignition	Sample amount	Time-lag
237°C	236°C	-	100 μl	-
298°C	303°C	-	100 μl	-
347°C	353°C	-	100 μl	-
400°C	408°C	+	100 μl	30 sec
400°C	408°C	+	200 μl	30 sec
371°C	377°C	-	200 μl	-
381°C	388°C	-	200 μl	-
390°C	398°C	+	200 μl	40 sec
384°C	391°C	-	200 μl	-
387°C	395°C	-	200 μl	-
389°C	396°C	-	200 μl	-

- not ignited

+ ignited

Applicant's summary and conclusion

Conclusions:

The auto-ignition temperature of Bis[2-(4,4-dimethylpentan-2-yl)-5,7,7-trimethyloctyl] malate is 390 °C at 990 hPa atmospheric pressure.

Executive summary:

The auto-ignition temperature is the lowest temperature of the inner surface of an

enclosure that results in ignition of a gas, vapour or liquid injected into the enclosure.

The objective of this study was to determine the auto-ignition temperature of the test

item in air at atmospheric pressure. A small sample of the test item was inserted into

an uniformly heated 500 ml glass flask containing air at a predetermined temperature.

The lowest temperature at which hot-flame ignition occurs for a series of prescribed

sample volumes was taken to be the hot-flame auto-ignition temperature of the

chemical.

The auto-ignition temperature of Bis[2-(4,4-dimethylpentan-2-yl)-5,7,7-

trimethyloctyl] malate is 390 °C.