Fatty acids, C14-18 and C18-unsatd., branched and linear, 2-ethylhexyl esters

Flash point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flash point of flammable liquids

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study without detailed documentation

Qualifier:

according to guideline

Guideline:

ASTM D93 (Standard test methods for flash point by pensky-martens closed cup tester)

GLP compliance:

no

Type of method:

closed cup

Flash point apparatus:

Pensky-Martens apparatus

Key result

Flash point:

112.5 °C

Atm. press.:

991 hPa

Interpretation of results:

GHS criteria not met

Conclusions:

The flash point was determined at 112.5°C at 991 hPa according to a ASTM D93 method.

Reference 2

Endpoint:

flash point of flammable 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

Key result

Flash point:

>= 170 - <= 213 °C

Atm. press.:

1 013 hPa

Table1 :Results of key studies on source chemicals for flash point

Name of the substance	CAS	Fatty acids chain length	Type of alcohol	MW	Appareance	Flash Point
Fatty acids, C8-16, 2- ethylhexyl esters	135800-37-2	C8-16	2-ethylhexanol	256.42 – 368.65	Liquid	186°C at 1013mBar
Fatty acids, coco, 2-ethylhexyl esters	92044-87-6	C12-14	2-ethylhexanol	312.53 – 340.60	liquid	170°C at 1013hPa
2-Ethylhexyl palmitate	29806-73-3	C16	2-ethylhexanol	368.65	Liquid	210°C at 1013°C
Fatty acids, C16-18 and C18-unsatd., 2-ethylhexyl esters	85049-37-2	C16-18, C18:1	2-ethylhexanol	368.65 – 396.7	Liquid	No data
Fatty acids, C16-18, 2-ethylhexyl esters	91031-48-0	C16-18	2-ethylhexanol	368.65 - 396.7	Liquid	218°C at 1013Hpa
2-Ethylhexyloleate	26399-02-0	C18:1	2-ethylhexanol	394.67	Liquid	213°C at 1013hPa
2-Ethylhexylstearate	22047-49-0	C18	2-ethylhexanol	396.7	Liquid	210°C at 1013°C

 

The physico-chemical properties of the category members are similar or follow a regular pattern over the category. All the members of the category have been tested for their flash point and they show flash points between 170 and 213°C. These very high values are related to the similarity of structures of the category members and the lack of flammability hazard.

Since the target substance is surrounded by the categories members, it can be deduced that its flash point will be ≥ 170 °C.

Interpretation of results:

GHS criteria not met

Conclusions:

Based on the experimental results of the source chemicals of the category, the flash point of the target substance "isostearate 2-ethylhexyl is considered to be ≥ 170 °C.

Description of key information

The Flash point of the target chemical "Isostearate 2 -ethylhexyl" was defined at 112,5°C measured with the Pensky-Martens cup tester.

Key value for chemical safety assessment

Flash point at 101 325 Pa:

112.5 °C

Additional information

Justification and rationale of the category approach for the isostearate 2-ethyl hexyl :

This category group covers 2-ethyl hexyl esters linked with fatty acid chains (C8 to C18) unsatured and satured. This category includes monoconstituent substances and UVCB substances varying fatty acid chain length. This category was made in order to provide sufficient information for physicochemical, ecotoxicological and toxicological caracterisation of the Fatty acids, C14-18 and C18-unsatd., branched and linear, 2-ethylhexyl esters (CAS No 85186-76-1).

The category group includes:

- Fatty acids, C8-16, 2-ethylhexyl esters (CAS No 135800-37-2)

- Fatty acids, coco, 2-ethylhexyl esters (CAS No 92044-87-6)

- 2-Ethyl hexyl palmitate (29806-73-3)

- Fatty acids, C16-18 and C18-unsatd., 2-ethylhexyl esters (CAS No 85049-37-2)

- Fatty acids, C16-18, 2-ethylhexyl esters (CAS No 91031-48-0)

- 2-Ethylhexyl oleate (CAS No 26399-02-0)

- 2-Ethyl hexyl stearate (CAS No 22047-49-0)

Target substance for Category Approach : Fatty acids, C14-18 and C18-unsatd., branched and linear, 2-ethylhexyl esters (CAS No 85186-76-1)

In accordance with article 13 (1) of Regulation (EC) No. 1907.2006, “information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI are met. In particular for human toxicity, environmental fate and ecotoxicity, information shall be generated whenever possible by means other than vertebrate animal tests which includes the use of information from structurally related substances (grouping or read across)”. Therefore, the available experimental data were collected and evaluated according to Annex XI requirements.

Summary of available information

All the members of the category have been tested for their flash point and they show flash points between 170 and 213°C. These very high values are related to the similarity of structures of the category members and the lack of flammability hazard. Since the target substance is surrounded by the categories members, it can be deduced that its flash point will be ≥ 170 °C.

An experimental study on the target substance, isostearate 2 -ethylhexyl, was also  performed according to the EU standard method by Pensky-Martens cup tester (only  method and results provided) and it gives a value of 112,5°C.

Conclusion

According to the Regulation (EC) NO. 1907/2006, Annex XI, 1.5, A Read-Across Category for "Long Chain Fatty Acid, 2-ethylhexyl esters" was performed in order to provide information on Isostearate 2-Ethylhexyl .

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 flash point obtained on the category members, it can be deduced that the target substance has a very high flash point, ≥ 170 °C, and doesn't present any inflammability hazard. Moreover an experimental study on the target substance, isostearate 2 -ethylhexyl, was also  performed and it gives a value of 112,5°C. By applying a conservative approach, this lowest experimental value is chosen as the representative flash point for the substance "isostearate 2 -ethylhexyl".