1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-(C8-18(even numbered) acyl) derivs., hydroxides, inner salts

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 16 May 2012 to 06 December 2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted according to internationally recognised guidelines, and under GLP. No deviation affected the quality of the study. The study was performed on the commercial product (aqueous solution) as the test item is manufactured and used in a liquid form.

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

2010-12-15

Key result

Auto-ignition temperature:

>= 434 - <= 442 °C

Atm. press.:

>= 97.6 - <= 98.2 kPa

Results of the preliminary test:

Volume of test item injected in the oven     70 µL

	Temperature of the assay (°C)		Self-ignition		Maximal temperature of the air recorded in the center of the test flask after self-ignition(°C)		Atmospheric pressure (kPa)	Relative humidity (%)
Assay No.	Observed	Corrected	Y / N	Lag(s)	Observed	Corrected
1	103	103	No	/	/	/	98.3	66
2	148	148	No	/	/	/	98.3	65
3	198	198	No	/	/	/	98.4	66
4	251	251	No	/	/	/	98.3	63
5	300	300	No	/	/	/	98.3	62
6	351	351	No	/	/	/	98.4	61
7	403	403	No	/	/	/	98.4	68
8	450	450	Yes	21	459	459	98.3	64
9	427	427	No	/	/	/	98.3	57
10	439	439	Yes	25	449	449	98.3	55
11	435	435	No	/	/	/	98.2	51

The self ignition temperature was between 435 and 439 °C(corrected temperatures).

Results of the main test:

Volume of test item injected in the oven                              70µL

Only the self ignition runs for each assay are summarized in the following table:

	Self-ignition temperature(°C)		Self-ignition	Maximal temperature of the air recorded in the center of the test flask after self-ignition(°C)		Atmospheric pressure (kPa)	Relative humidity (%)
Assay No.	Observed	Corrected	Lag(s)	Observed	Corrected
1	438	438	18	469	469	98.2	48
2	437	437	36	451	451	98.1	48
3	438	438	26	450	450	97.8	64
4	438	438	22	443	443	97.8	63
5	439	439	23	445	445	97.6	57

Conclusions:

The mean self-ignition temperature of the test item was 438 ± 4 °C (corrected temperature).

Executive summary:

The auto-ignition temperature of the test item (= substance EC 939-455-3 in aqueous commercial product) was investigated in a GLP-compliant study performed in accordance with EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)). The mean self-ignition temperature of the test item was 438 ± 4 °C.

The study was performed on a commercial product (aqueous solution) as thesubstance EC 939-455-3 is manufactured and used in a liquid form.

The self-ignition temperature of the test item was determined according to Method A.15 of Commission Regulation (EC) N°440/2008 of 30 May 2008 and GLP. No deviation of the guidelines was observed during the test. Before the experimentation, the accuracy of the apparatus was assessed with a reference item. Based on the result obtained with the reference item, the apparatus was considered acceptable for use. The test is repeated at different temperatures (from about 100 to about 600 °C) with suitable sampling volumes(70 µL for this study)until the minimum value of the ignition temperature is observed. The mean self-ignition temperature of the test item was 438 ± 4 °C (corrected temperature).

Description of key information

The auto-ignition temperature of the substance 1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-(C8-18(even numbered) acyl) derivs., hydroxides, inner salts (EC 939-455-3) in aqueous solution was investigated in a GLP-compliant study (Colombies, 2013) performed in accordance with EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)). The mean self-ignition temperature of the mixture was 438 ± 4 °C.

The study was performed on a commercial product (aqueous solution) as the substance EC 939-455-3 is manufactured and used in a liquid form.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

438 °C

Additional information

The auto-ignition temperature of the substance 1-Propanaminium, N-(3-aminopropyl)-2-hydroxy-N,N-dimethyl-3-sulfo-, N-(C8-18(even numbered) acyl) derivs., hydroxides, inner salts (EC 939-455-3) in aqueous solution was investigated in a GLP-compliant study (Colombies, 2013) performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and was selected as key study for the endpoint.