Triethoxy(3-thiocyanatopropyl)silane

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:

2015-11-20 to 2015-11-25

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)

Version / remarks:

2003

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

30 May 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Auto-ignition temperature:

230 °C

Atm. press.:

ca. 998 - ca. 1 011 hPa

Results:

The measurement results are shown in the following tables.

 

Preliminary test:

Test No.	Sample volume [µl]	Barometric pressure [mBar]	Temperature [°C]	Ignition delay [s]	Test result
1	150	998	300	0	ignition
2	150	998	280	5	ignition
3	150	998	260	8	ignition
4	150	998	240	22	ignition
5	150	998	220	-	no ignition

 

Results from preliminary test series: ignition: 240°C; no ignition: 220°C

 

Main test:

First main test series

Test No.	Sample volume [µl]	Barometric pressure [mBar]	Temperature [°C]	Ignition delay [s]	Test result
1	150	998	235	35	ignition
2	150	998	230	-	no ignition
3	450	998	230	-	no ignition
4	450	998	233	40	ignition
5	450	998	231	-	no ignition
6	350	998	231	-	no ignition
7	250	998	231	-	no ignition
8	150	998	231	-	no ignition

 

Results from first main test series: ignition: 233°C; no ignition: 231°C

 

Second main test series

Test No.	Sample volume [µl]	Barometric pressure [mBar]	Temperature [°C]	Ignition delay [s]	Test result
1	450	1011	233	40	ignition
2	450	1011	231	-	no ignition
3	400	1011	231	-	no ignition
4	300	1011	231	-	no ignition
5	200	1011	231	-	no ignition
6	100	1011	231	-	no ignition
7	60	1011	231	-	no ignition

 

Results from second main test series: ignition: 233°C; no ignition: 231°C

 

Retest

Test No.	Sample volume [µl]	Barometric pressure [mBar]	Temperature [°C]	Ignition delay [s]	Test result
1	450	1011	233	43	ignition
2	450	1011	231	-	no ignition
3	350	1011	231	-	no ignition
4	250	1011	231	-	no ignition
5	150	1011	231	-	no ignition
6	60	1011	231	-	no ignition
7	100	1011	231	-	no ignition
8	200	1011	231	-	no ignition
9	300	1011	231	-	no ignition
10	400	1011	231	-	no ignition

 

Results from retest: ignition: 233°C; no ignition: 231°C

 

Evaluation:

Lowest value from pretest [°C]	240
Lowest value from first main test [°C]	233
Lowest value from second main test [°C]	233
Lowest value from first retest [°C]	233

 

Lowest value of all main test/retest series = 233°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).

 

Conclusions:

An auto-ignition temperature value of 230°C at 998-1011 hPa was determined for the substance using a relevant test method and in compliance with GLP. The result is considered to be reliable.

Description of key information

Auto-ignition temperature: 230°C at 998-1011 hPa (DIN 51794)

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

230 °C

Additional information

A measured auto-ignition temperature value of 230°C at 998-1011 hPa was determined according to EC test method A. 15 and in compliance with GLP. The result is considered to be reliable and is selected as key study.

 

In a secondary source to which reliability could not be assigned, an auto-ignition temperature value of 225°C was reported for the substance.