Hydrocarbons, C11-C16, n-alkanes, isoalkanes,

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

auto-ignition temperature (liquids)

Type of information:

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

Adequacy of study:

key study

Study period:

Experimental Starting Date: 03 December 2013 Experimental Completion Date: 10 March 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

Justification for type of information:

The hypothesis for the analogue approach is that the test substance, Hydrocarbons, C10-C13, n-alkanes, isoalkanes, <2% aromatics, Hydrocarbons, contains constituents which are also constituents of the target substance, Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics. The substances have overlapping constituents and therefore have qualitatively similar properties (RAAF Scenario 2 applies).

Reason / purpose for cross-reference:

read-across: supporting information

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

212 °C

Atm. press.:

>= 100.6 - <= 101.9 kPa

Remarks on result:

other: The test item has been determined to have an auto-ignition temperature of 212 ± 5 °C.

Results

Results of the auto-ignition temperature determination are shown in the following table.

Table 1: Flash point results

 

Test Temperature (ºC)	Test Volume (µL)	Ignition Delay (s)	Observations
200 (clean flask)	70	> 300	No ignition.
250 (clean flask)	70	9	Yellow flame, grey fumes emitted.
240	70	> 300	No ignition, grey fumes emitted.
246 (clean flask)	70	12	Yellow flame, grey fumes emitted.
242 (clean flask)	70	12	Yellow flame, grey fumes emitted.
240 (clean flask)	70	19	Yellow flame, grey fumes emitted.
238 (clean flask)	70	> 300	No ignition, grey fumes emitted.
238 (clean flask)	200	14	Yellow flame, grey fumes emitted.
236 (clean flask)	200	17	Yellow flame, grey fumes emitted.
234 (clean flask)	200	22	Yellow flame, grey fumes emitted.
232 (clean flask)	200	24	Yellow flame, grey fumes emitted.
228	200	35	Yellow flame, grey fumes emitted.
226	200	33	Yellow flame, grey fumes emitted.
222	200	59	Yellow flame, grey fumes emitted.
218	200	72	Yellow flame, grey fumes emitted.
214	200	> 300	No ignition, grey fumes emitted.
216 (clean flask)	200	> 300	No ignition, grey fumes emitted.
216 (clean flask)	400	77	Yellow flame, grey fumes emitted.
214 (clean flask)	400	142	Yellow flame, grey fumes emitted.
212 (clean flask)	400	> 300	No ignition, grey fumes emitted.
212 (clean flask)	600	> 300	No ignition, grey fumes emitted.
212 (clean flask)	800	117	Yellow flame, grey fumes emitted.
210 (clean flask)	800	> 300	No ignition, grey fumes emitted.
210 (clean flask)	1000	> 300	No ignition, grey fumes emitted.
210 (clean flask)	1200	> 300	No ignition, grey fumes emitted.
210 (clean flask)	1400	> 300	No ignition, grey fumes emitted.
210 (clean flask)	1600	> 300	No ignition, grey fumes emitted.

Room temperature:                20 °C

Atmospheric pressure:100.6 to 101.9 kPa

Conclusions:

A measured auto-ignition temperature of 212 ± 5°C at 100.6 to 101.9 kPa was determined for the substance using a relevant test method. The result is considered reliable.

Executive summary:

The determination was carried out using a procedure[1]designed to be compatible with Method A15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.

[1]Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications79-4, P1-19.

Conclusion

The test item has been determined to have an auto-ignition temperature of 212 ± 5 °C.

Reference 2

Endpoint:

auto-ignition temperature (liquids)

Type of information:

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

Adequacy of study:

key study

Study period:

Experimental Starting Date: 03 December 2013 Experimental Completion Date: 11 March 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.

Justification for type of information:

The hypothesis for the analogue approach is that the test substance Hydrocarbons, C12-C15, n-alkanes, isoalkanes <2% aromatics contains constituents which are also constituents of the target substance, Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics. The substances have overlapping constituents and therefore have qualitatively similar properties (RAAF Scenario 2 applies).

Reason / purpose for cross-reference:

read-across: supporting information

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

200 °C

Atm. press.:

97.1 - 100.8 kPa

Remarks on result:

other: The test item has been determined to have an auto-ignition temperature of 200 ± 5 °C.

Results

Results of the auto-ignition temperature determination are shown in the following table.

Table 1: Auto-ignition results

 

Test Temperature (ºC)	Test Volume (µL)	Ignition Delay (s)	Observations
200 (clean flask)	70	> 300	No ignition, grey fumes emitted.
250 (clean flask)	70	9	Yellow flame, grey fumes emitted.
240	70	16	Yellow flame, grey fumes emitted.
230	70	> 300	No ignition, grey fumes emitted.
236	70	28	Yellow flame, grey fumes emitted.
232	70	35	Yellow flame, grey fumes emitted.
230 (clean flask)	70	34	Yellow flame, grey fumes emitted.
228 (clean flask)	70	> 300	No ignition, grey fumes emitted.
228 (clean flask)	200	31	Yellow flame, grey fumes emitted.
226 (clean flask)	200	29	Yellow flame, grey fumes emitted.
224 (clean flask)	200	40	Yellow flame, grey fumes emitted.
222 (clean flask)	200	36	Yellow flame, grey fumes emitted.
218	200	73	Yellow flame, grey fumes emitted.
214	200	73	Yellow flame, grey fumes emitted.
210	200	> 300	No ignition, grey fumes emitted.
212 (clean flask)	200	72	Yellow flame, grey fumes emitted.
210 (clean flask)	200	> 300	No ignition, grey fumes emitted.
210 (clean flask)	400	> 300	No ignition, grey fumes emitted.
210 (clean flask)	600	105	Pale blue flame, grey fumes emitted.
208 (clean flask)	600	80	Pale blue flame, grey fumes emitted.
206 (clean flask)	600	> 300	No ignition, grey fumes emitted.
206 (clean flask)	800	> 300	No ignition, grey fumes emitted.
206 (clean flask)	1000	> 300	No ignition, grey fumes emitted.
206 (clean flask)	1200	134	Pale blue flame, grey fumes emitted.
204 (clean flask)	1200	134	Pale blue flame, grey fumes emitted.
202 (clean flask)	1200	> 300	No ignition, grey fumes emitted.
202 (clean flask)	1400	> 300	No ignition, grey fumes emitted.

Table 2 (continued)

 

Test Temperature (ºC)	Test Volume (µL)	Ignition Delay (s)	Observations
202 (clean flask)	1600	266	Pale blue flame, grey fumes emitted.
200 (clean flask)	1600	180	Pale blue flame, grey fumes emitted.
198 (clean flask)	1600	> 300	No ignition, grey fumes emitted.
198 (clean flask)	1800	> 300	No ignition, grey fumes emitted.
198 (clean flask)	2000	> 300	No ignition, grey fumes emitted.
198 (clean flask)	2200	> 300	No ignition, grey fumes emitted.
198 (clean flask)	2400	> 300	No ignition, grey fumes emitted.

 

Room temperature: 20 to 21°C

Atmospheric pressure: 97.1 to 100.8 kPa

Conclusions:

An auto-ignition temperature of 200 ± 5°C at 97.1- 100.8 kPa was determined for the substance using a relevant test method. The result is considered reliable.

Executive summary:

The determination was carried out using a procedure[1]designed to be compatible with Method A15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.

[1]Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications79-4, P1-19.

Conclusion

The test item has been determined to have an auto-ignition temperature of 200 ± 5 °C.

Reference 3

Endpoint:

auto-ignition temperature (liquids)

Type of information:

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

Adequacy of study:

key study

Study period:

Experimental Starting Date: 04 December 2013 Experimental Completion Date: 11 March 2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

The hypothesis for the analogue approach is that the test substances Hydrocarbons, C14-C16, n-alkanes, isoalkanes, <2% aromatics contains constituents which are also constituents of the target substance, Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics. The substances have overlapping constituents and therefore have qualitatively similar properties (RAAF Scenario 2 applies).

Reason / purpose for cross-reference:

read-across: supporting information

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes

Key result

Auto-ignition temperature:

204 °C

Atm. press.:

99.8 - 100.8 kPa

Remarks on result:

other: The test item has been determined to have an auto-ignition temperature of 204 ± 5°C.

Results

Results of the auto-ignition temperature determination are shown in the following table.

Table 3.1: Auto-ignition results

 

Test Temperature (ºC)	Test Volume (µL)	Ignition Delay (s)	Observations
200 (clean flask)	70	> 300	No ignition.
250 (clean flask)	70	7	Yellow flame, grey fumes emitted.
240 (clean flask)	70	14	Yellow flame, grey fumes emitted.
230	70	23	Yellow flame, grey fumes emitted.
220	70	> 300	No ignition, grey fumes emitted.
226	70	39	Yellow flame, grey fumes emitted.
222 (clean flask)	70	> 300	No ignition, grey fumes emitted.
224 (clean flask)	70	46	Yellow flame, grey fumes emitted.
222 (clean flask)	200	52	Yellow flame, grey fumes emitted.
220 (clean flask)	200	52	Yellow flame, grey fumes emitted.
218 (clean flask)	200	88	Yellow flame, grey fumes emitted.
216 (clean flask)	200	48	Yellow flame, grey fumes emitted.
214 (clean flask)	200	> 300	No ignition, grey fumes emitted.
214 (clean flask)	400	65	Yellow flame, grey fumes emitted.
212 (clean flask)	400	76	Yellow flame, grey fumes emitted.
210 (clean flask)	400	> 300	No ignition, grey fumes emitted.
210 (clean flask)	600	123	Yellow flame, grey fumes emitted.
208 (clean flask)	600	155	Yellow flame, grey fumes emitted.
206 (clean flask)	600	157	Pale blue/yellow flame, grey fumes emitted.
204 (clean flask)	600	97	Pale blue/yellow flame, grey fumes emitted.
202 (clean flask)	600	> 300	No ignition, grey fumes emitted.
202 (clean flask)	800	> 300	No ignition, grey fumes emitted.
202 (clean flask)	1000	> 300	No ignition, grey fumes emitted.
202 (clean flask)	1200	> 300	No ignition, grey fumes emitted.
202 (clean flask)	1400	> 300	No ignition, grey fumes emitted.

 

Room temperature: 20 to 21°C

Atmospheric pressure: 99.8 to 100.8 kPa

Conclusions:

An auto-ignition temperature of 204 ± 5°C at 99.8 - 100.8 kPa was determined for the substance using relevant test method. The result is considered reliable

Executive summary:

The determination was carried out using a procedure[1]designed to be compatible with Method A15 Auto-Ignition Temperature (Liquids and Gases) of Commission Regulation (EC) No 440/2008 of 30 May 2008.

[1]Based on, Anon (1987), Electrical Apparatus for Explosive Gas Atmospheres. Part 4: Method of Test for Ignition Temperature. IEC Publications79-4, P1-19.

Conclusion

The test item has been determined to have an auto-ignition temperature of 204 ± 5 °C.

 

Description of key information

There is no data available for Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics. However, data is available for structural analogues, Hydrocarbons, C10-C13, n-alkanes, isoalkanes, <2% aromatics; Hydrocarbons, C12-C15, n-alkanes, isoalkanes, <2% aromatics; and Hydrocarbons, C14-C16, n-alkanes, isoalkanes, <2% aromatics and presented in the dossier. The hypothesis for the analogue approach is that the test substances, contain constituents which are also constituents of the target substance, Hydrocarbons, C11-C16, n-alkanes, isoalkanes, <2% aromatics. The substances have overlapping constituents and therefore have qualitatively similar properties (RAAF Scenario 2 applies).

There are no reliable measured auto-ignition data for the registration substance. However, reliable data are available for related substances in the relevant carbon number range, including other Fischer-Tropsch process-derived substances.

In EU Method A.15 studies, which were conducted in compliance with GLP, Hydrocarbons, C10-C13, n-alkanes, isoalkanes, <2% aromatics (GS190), Hydrocarbons, C12-C15, n-alkanes, isoalkanes, <2% aromatics (GS215) and Hydrocarbons, C14-C16, n-alkanes, isoalkanes, <2% aromatics (GS250) had measured auto-ignition temperature values of 212 ± 5°C at 100.6 -101.9 kPa, 200 ± 5°C at 97.1 - 100.8 kPa and 204 ± 5°C at 99.8 - 100.8 kPa, respectively.

The results are considered to be reliable and are used as weight of evidence.