Decan-4-olide

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

migrated information: read-across from supporting substance (structural analogue or surrogate)

Adequacy of study:

key study

Study period:

2012-03-01 to 2012-03-26

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to an internationally recognised guideline. Purity of the test substance is specified (with certificate of analysis). Minor restriction is not considered to be significant. Therefore full validation applies. Read-across is justified as data is available for an analogue with only one carbon less in the branched chain length, and lower boiling and flash points.

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

BS 4056 (1966)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Sample storage: room temperature in the dark.

Auto-ignition temperature:

256 °C

Atm. press.:

1 027 mBar

Remarks on result:

other:

Test temperature (°C)	Test volume (μl)	Time (s)	Observation
400	70	1	Yellow flame
300	70	8	Yellow flame
266	70	22	Yellow flame
250	70	>300	White smoke, no ignition
250	1000	>300	White smoke, no ignition
258	70	38	Yellow flame
254	70	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition
256	70	>300	White smoke, no ignition
256	1000	60	Yellow flame
254	100	>300	White smoke, no ignition
254	200	>300	White smoke, no ignition
254	500	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition
254	1000	>300	White smoke, no ignition

Conclusions:

For the target compound (gamma)-Decalactone, the AIT is expected to be >256°C.

Executive summary:

Read-across for (gamma)-Decalactone is justified as data is available for an analogue with only one carbon less in the branched chain length, and lower boiling and flash points.

Following the standard BS 4056 (listed in EU A15 guideline), the test substance has an auto-ignition temperature of 256ºC under atmospheric pressure.

Description of key information

The Auto-Ignition Temperature is expected to be >256°C (from analogue).

Additional information

No data is available for the substance itself, however a fully reliable key study is available for an analogue with only one carbon less in the branched chain length. As the AIT is expected to increase with increasing boiling point and flash point in an homologous series, the result on the test substance is expected to be a worst-case for the parent compound. However, as expressed as a limit value, it cannot be retained as key data for purpose of CSA.

This parameter is not used for classification, however it is useful for Risk Management Measures during storage and use, or in case of a fire.