N-methyl-3-(trimethoxysilyl)propylamine

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:

09-Jun-2015 to 09-Nov-2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Qualifier:

according to guideline

Guideline:

other: DIN 51794 (2003)

GLP compliance:

yes (incl. QA statement)

Remarks:

Gute Laborpraxis/Good Laboratory Practice GLP-Bescheiningung/Statement of GLP Compliance (gemäß/according to § 19b Abs. 1 Chemikaliengesetz)

Auto-ignition temperature:

275 °C

Atm. press.:

1 004 hPa

Results

Preliminary test

test no.	sample volume (µl)	barometric pressure (mbar)	T (°C)	ignition delay (s)	test result
1	150	1001	300	7	ignition
2	150	1001	280	28	ignition
3	150	1001	260	-	no ignition
4	150	1001	265	-	no ignition
5	150	1001	270	-	no ignition
6	150	1001	275	-	no ignition

 

Result value from preliminary test series: ignition: 280 °C, no ignition: 275 °C

Main test

First main test series

test no.	sample volume (µl)	barometric pressure (mbar)	T (°C)	ignition delay (s)	test result
1	150	998	280	-	no ignition
2	300	998	280	25	ignition
3	300	998	278	-	no ignition
4	400	998	278	35	ignition
5	400	998	277	40	ignition
6	400	998	275	-	no ignition
7	300	998	275	-	no ignition
8	150	998	275	-	no ignition
9	500	998	275	-	no ignition

 

Result first main test series: ignition: 277 °C, no ignition: 275 °C

 

Second main test series

test no.	sample volume (µl)	barometric pressure (mbar)	T (°C)	ignition delay (s)	test result
1	400	1003	277	30	ignition
2	400	1003	275	35	ignition
3	400	1003	273	-	no ignition
4	300	1003	273	-	no ignition
5	150	1003	273	-	no ignition
6	500	1003	273	-	no ignition

 

Result second main test series: ignition: 275 °C, no ignition: 273 °C

Retest

test no.	sample volume (µl)	barometric pressure (mbar)	T (°C)	ignition delay (s)	test result
1	400	1004	275	31	ignition
2	400	1004	273	-	no ignition
3	300	1004	273	-	no ignition
4	500	1004	273	-	no ignition
5	150	1004	273	-	no ignition
6	125	1004	273	-	no ignition
7	250	1004	273	-	no ignition
8	500	1004	273	-	no ignition

 

Results retest: ignition: 275 °C, no ignition: 273 °C

 

Evaluation

lowest value from pretest	280 °C
lowest value for first main test	277 °C
lowest value for second main test	275 °C
lowest value for retest	275 °C

 

Lowest value of all main test/retest series: 275 °C

Correction of the temperature according to the last DKD calibration (06/2015) of the temperature measurement chain (thermocouple + monitor) is already considered (value of -0.5 °C).

 

Concluding result

The auto-ignition temperature is 275 °C (according to the assessment criteria and definition in the Council Regulation (EC) No 440/2008, test method A.15.

Conclusions:

An auto-ignition temperature of 275 °C at 1004 hPa was determined in a reliable study conducted according to an appropriate test protocol.

Description of key information

N-methyl-3-(trimethoxysilyl)propylamine: 275°C (measured)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

275 °C

Additional information

An auto-ignition temperature of 275 °C at 1004 hPa was obtained for the parent substance according to EU test method A.15.