1-(2,2,4-trimethyl-1-quinolyl)ethanone

Auto flammability

Administrative data

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

13 Jul - 21 Jul 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2020

Report date:

2020

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

Hess. Ministerium für Umwelt, Klimaschutz, Landwirtschaft und Verbraucherschutz, Wiesbaden, Germany

Test material

Test material information

Constituent 1

Reference substance name:

1-(2,2,4-trimethyl-1,2-dihydroquinolin-1-yl)ethan-1-one

EC Number:

665-911-3

Cas Number:

5855-23-2

Molecular formula:

C14 H17 N O

IUPAC Name:

1-(2,2,4-trimethyl-1,2-dihydroquinolin-1-yl)ethan-1-one

Results and discussion

Auto-ignition temperature (liquids / gases)

Auto-ignition temperature:

385 °C

Atm. press.:

>= 1 005.7 - <= 1 017.2 hPa

Any other information on results incl. tables

Individual results
Preliminary test
The following table shows the results of the preliminary test. Temperatures where auto-ignition was detected are marked with +; temperatures where no auto-ignition was detected are marked with - in the table below. The amount of test item tested at each measurement is indicated as numbers of portions (i.e. drops). The results are summarized in the Table below.

T / °C	portions	+/-	Time lag / s
207	5	-	-
257	5	-	-
307	5	-	-
357	5	-	-
407	5	+	2
377	5	-	-
397	5	+	4

barometric pressure: 1015.9 hPa

The lowest auto-ignition temperature of the test item was determined to be 397 °C in the preliminary test.

Main test

The results of the main test are compiled in the Tables below.

Auto-ignition temperature (1^st main test, part 1 - 5 K steps)

T / °C	portions	+/-	Time lag / s
397	5	-	-
402	5	+	4
397	5	+	4
392	5	-	-
392	10	-	-
392	1	-	-
392	9	-	-
392	2	-	-
392	8	-	-
392	3	-	-
392	7	-	-
392	4	-	-
392	6	-	-

barometric pressure: 1017.2 hPa

 

Auto-ignition temperature (1^st main test, part 2 - 2 K steps)

T / °C	portions	+/-	Time lag / s
397	5	+	4
395	5	+	2
393	5	-	-
393	10	-	-
393	1	-	-
393	9	-	-
393	2	-	-
393	8	-	-
393	3	-	-
393	7	-	-
393	4	-	-
393	6	-	-

barometric pressure: 1012.7 hPa

Auto-ignition temperature (2^nd main test, 2 K steps)

T / °C	portions	+/-	Time lag / s
395	5	+	5
393	5	-	-
393	10	-	-
393	1	-	-
393	9	-	-
393	2	+	2
391	2	-	-
391	10	-	-
391	8	-	-
391	5	-	-
391	3	-	-
391	7	-	-
391	4	-	-
391	4	-	-
391	6	-	-
391	9	-	-
391	1	-	-

barometric pressure: 1005.7 hPa

Auto-ignition temperature (3^rd main test, 2 K steps)

T / °C	portions	+/-	Time lag / s
393	2	+	5
391	2	+	8
389	2	+	11
387	2	-	-
387	10	-	-
387	5	-	-
387	9	-	-
387	1	-	-
387	8	-	-
387	3	-	-
387	7	-	-
387	4	-	-
387	6	-	-

barometric pressure: 1014.2 hPa

Auto-ignition temperature (summary)

Main test series	Auto-ignition temperature /°C	Time lag / s
1st main test (5 K)	397	4
1st main test (2 K)	395	2
2nd main test (2 K)	393	2
3rd main test (2 K)	389	11

The lowest auto-ignition temperature of the test item was determined to be 389 °C in the main test. Due to safety reasons and according to the guidelines the lowest measured temperature at which an ignition was observed was rounded to the next lower number divisible by 5, giving a value of 385 °C.