Ethyl decanoate

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

weight of evidence

Study period:

29 June 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

according to guideline

Guideline:

ASTM E659 (Standard test method for autoignition temperature of liquid chemicals)

Deviations:

not specified

GLP compliance:

no

Key result

Auto-ignition temperature:

382 °C

Atm. press.:

998.6 hPa

Conclusions:

The auto-flammability of ethyl decanoate was determined to be 382°C at the pressure of 998.6 hPa, according to ASTM E659 method.

Reference 2

Endpoint:

auto-ignition temperature (liquids)

Type of information:

read-across based on grouping of substances (category approach)

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Read-Across category

Justification for type of information:

See "Assessment reports" section 13 or "Categories" section for the justification and rationale document for category approach.

Key result

Auto-ignition temperature:

>= 225 °C

Atm. press.:

1 013 hPa

Table 1: Results from available key studies on the source substances of the category

Common name	CAS	Fatty acid chain length	Type of alcohol	MW	Appareance	Autoflammability
Ethyl decanoate	110-38-3	C10	ethanol	200.32	Liquid	Experimental result: 382°C at 998.5 hPa
Ethyl undecylenate	692-86-4	C11	ethanol	212.33	liquid	No data
Isopropyl laurate	10233-13-3	C12	Isopropanol	242,41	Liquid	Experimental result: 345°C at 1013hPa
Octyl octanoate	2306-88-9	C8	octanol(C8)	256,42	Liquid	Experimental result: 230°C at>= 1005 - =< 1007hPa
Isopropyl myristate	110-27-0	C14	Isopropanol	270,46	Liquid	Experimental results: 225°C at 1013hPa
Dodecanoic hexyl ester	34316-64-8	C12	Hexanol(C6)	284,49	Liquid	Experimental result: 235°C at 993-1016hPa
Ethyl linoleate	544-35-4	C18:2	ethanol	308,5	Liquid	no data
Ethyl oleate	111-62-6	C18:1	ethanol	310.52	Liquid	no data
2-ethylhexyl laurate	20292-08-4	C12	2-Ethyl-Hexanol	312,53	Liquid	Experimental result: 240°C at>= 1000 - <1023hPa
Fatty acids, coco, 2-ethylhexyl esters	92044-87-6	C12-14	2-ethylhexanol	312.53 – 340.60	liquid	Experimental results : 240°C at 1013 hPa

The physico-chemical properties of the category members are similar or follow a regular pattern over the category. Several members of the category have been tested for their auto-flammability and they show values between 225 and 345°C at 1013 hPa. These high values are related to the similarity of structures of the category members and to the lack of auto-flammability hazard.

Since the target substance "Ethyl decanoate" belongs to the category, it can be deduced that its auto-flammability will be ≥ 225°C a 1013 hPa.

 

Conclusions:

Based on the experimental results of the source chemicals of the category, the auto-flammability of the target substance, Ethyl decanoate, is considered to be ≥ 225°C.
at 1013 hPa

Reference 3

Endpoint:

auto-ignition temperature (liquids)

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is a liquid non flammable in air, e.g. no flash point up to 200°C

Description of key information

The autoflammability of Ethyl decanoate is considered to be 382 °C at 998.6 hPa determined according to ASTM E659.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

382 °C

Additional information

Justification and rationale of the category approach for Ethyl Caprate

This category group covers fatty acid chains linked to alcohols via an ester function. It includes mono-constituent substances and UVCB substances with varying fatty acid chain lengths from C8 to C18-unsaturated and alcohol types (including ethanol, isopropanol, octanol, hexanol and 2-ethylhexanol). This category group was made in order to provide sufficient information for physico-chemical, environmental, ecotoxicological and toxicological characterization of ethyl decanoate (CAS 110-38-3). Some data on the target substance of the category are available.

This category includes:

-       Target substance:

o       Ethyl decanoate (CAS 110-38-3)

-       Source substances:

o       Ethyl undecylenate (CAS 692-86-4)

o       Isopropyl laurate (CAS 10233-13-3)

o       Octyl octanoate (CAS 2306-88-9)

o       Isopropyl myristate (CAS 110-27-0)

o       Dodecanoic hexyl ester (CAS 34316-64-8)

o       Ethyl linoleate (CAS 544 -(544-35-4)

o       Ethyl oleate (CAS 111-62-6)

o       2-Ethylhexyl laurate (CAS 20292-08-4)

o       Fatty acids, coco, 2-ethylhexyl esters (CAS 92044-87-6)

Summary of available studies on source substances for the auto-flammability

Experimental results were obtained from key studies performed on Isopropyl laurate, octyl octanoate, isopropyl myristate, dodecanoic hexyl ester, 2-ethylhexyl laurate and fatty acids coco 2-ethylhexyl esters. Auto flammability values at atmospheric pression obtained for these category members are between 225 and 345°C at 1013 hPa. These high values are related to the similarity of structures of the category members and to the lack of auto-flammability hazard. Based on this categoyy approach, the auto-flammability of  Ethyl decanoate, is considered to be ≥ 225°C at 1013 hPa.

An experimental study on the target substance, Ethyl decanoate, was also performed according to the ASTM E659 method (only method and results provided) and it gives a value of 382°C at 998.6 hPa.

Moreover since the target substance is a liquid with no flash point up to 200°C, its auto-flammability can be waived according to column 2, Annex VI of REACH.

Conclusion

According to the Regulation (EC) NO. 1907/2006, Annex XI, 1.5, a Read-Across Category for " Medium Chain Fatty Acid (from C8 to C18 unsat.) and alcohol esters (from C2 to C8) was performed in order to provide information on Ethyl decanoate.

This category was based on common and shared properties as:

- common functional group,

- common precursors and the likelihood of common impurities resulting from common process of manufacturing,

- chemically structurally similar breakdown products obtained via the same biological processes into the organisms, and

- constant pattern in the changing of the potency of the properties across the category.

Based on the results obtained with the category members, it can be deduced that the target substance, Ethyl decanoate, has an auto-flammability ≥ 225°C at 1013 hPa.

Moreover an experimental study on Ethyl decanoate was also performed according to the ASTM E659 method and the value of 382°C at 998.6 hPa was obtained (only method and results provided). This experimental value confirms the lack of auto-flammability hazard of Ethyl decanoate and it is considered as relevant for auto-flammability assessment.