Triethoxyhexadecylsilane

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

key study

Study period:

12 May 2015 to 12 Jan 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was conducted according to EU test method A.15.

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:

Ministerium für Arbeit, Integration und Soziales des Landes Nordrhein-Westfalen

Auto-ignition temperature:

240 °C

Atm. press.:

1 015 hPa

Remarks on result:

other:

Results

 

Preliminary test

 

Test no.	Sample volume [µl]	Barometric pressure [mbar]	T [°C]	Ignition delay [s]	Test result
1	150	1024	300	8	ignition
2	150	1024	280	9	ignition
3	150	1024	260	12	ignition
4	150	1024	240	-	no ignition

                                           

Result value from preliminary test series: ignition: 260 °C, no ignition: 243 °C

 

Main test

First main test series

Test no.	Sample volume [µl]	Barometric pressure [mbar]	T [°C]	Ignition delay [s]	Test result
1	150	1024	245	32	ignition
2	150	1024	243	-	no ignition
3	250	1024	243	-	no ignition
4	350	1024	243	-	no ignition
5	450	1024	243	-	no ignition

                                           

Result value from first main test series: ignition: 245 °C, no ignition: 243 °C

Second main test series

Test no.	Sample volume [µl]	Barometric pressure [mbar]	T [°C]	Ignition delay [s]	Test result
1	150	1015	245	30	ignition
2	150	1015	243	-	no ignition
3	200	1015	243	38	ignition
4	200	1015	241	-	no ignition
5	300	1015	241	-	no ignition
6	400	1015	241	-	no ignition
7	450	1015	241	-	no ignition
8	350	1015	241	-	no ignition
9	250	1015	241	-	no ignition
10	150	1015	241	-	no ignition
11	50	1015	241	-	no ignition

                                           

Result value from second main test series: ignition: 243 °C, no ignition: 241 °C

 

Retest

Test no.	Sample volume [µl]	Barometric pressure [mbar]	T [°C]	Ignition delay [s]	Test result
1	200	1018	245	29	ignition
2	200	1018	243	36	ignition
3	200	1018	241	-	no ignition
4	50	1018	241	-	no ignition
5	100	1018	241	-	no ignition
6	150	1018	241	-	no ignition
7	200	1018	241	-	no ignition
8	300	1018	241	-	no ignition
9	400	1018	241	-	no ignition

                                           

Results retest: ignition: 243 °C, no ignition: 241 °C

Evaluation

lowest value from pretest	260 °C
lowest value for first main test	245 °C
lowest value for second main test	243 °C
lowest value for retest	243 °C

 

Lowest value of all main test/retest series: 243 °C.

Correction of the temperature according to the last DKD calibration (06/2014) of the temperature measurement chain (thermocouple + monitor) is already considered (value of -0.5 °C).

Concluding result

The auto-ignition temperature is 240 °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 240°C at 1015 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.

Description of key information

Triethoxyhexadecylsilane: 240 °C at 1015 hPa

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

240 °C

Additional information

An auto-ignition temperature of 240 °C at 1015 hPa was determined according to EU test method A.15.