1,1,2,2,3,3,4,4-octafluoro-1,4-diiodobutane

Auto flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From september 2017 to December 2017

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))

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

- Appearance: Pink liquid
- Test item storage: At room temperature Protected from light
- Purity/Composition correction factor: No correction factor required

Key result

Auto-ignition temperature:

220 °C

Atm. press.:

>= 1 020 - <= 1 025 hPa

Preliminary Test

The estimated auto-ignition temperature was 265°C.

Main Test

The results of the main study on the determination of the auto-ignition temperature of the test item are given in the table below. Ignition of the test item within 5 minutes after introduction was observed with each sample volume and with each test a minimum auto-ignition temperature was obtained. The maximum deviation between the three values was < 10°C. According to the guidelines, no further testing was required. The lowest temperature at which ignition of the test item occurred was 220°C. This temperature was a multiple of 5°C and therefore given as the auto-ignition temperature of the test item.

Test	Volume  [μL]	Auto-ignitiontemperature [°C]	Ignition delay  [s]	Colour of the flame	Minimum auto- ignition temperature[°C]
1	70	262	71	orange	223
	150	242	106
	400	223	131
	600	225	110
2	200	232	103	orange	221
	450	221	85
	700	228	58
3	220	231	124	orange	220
	500	220	95
	670	229	57

Conclusions:

The test item is auto-ignitable with an auto-ignition temperature of 220°C. The atmospheric pressure was between 1020 and 1025 hPa.

Executive summary:

The auto-ignition temperature of the test item was determined in a GLP-compliant study performed in accordance with EC A.15 Method and DIN 51794 Standard. The test item is auto-ignitable with an auto-ignition temperature of 220°C at atmospheric pressure (1020-1025 hPa).

Reference 2

Endpoint:

auto-flammability

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

27 Oct - 3 Nov 2014

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was done in accordance wtih EU guidance but was not GLP.

Qualifier:

according to guideline

Guideline:

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

Deviations:

not applicable

GLP compliance:

no

Auto-ignition temperature:

260 °C

Atm. press.:

1 000.4 - 1 018 hPa

Remarks on result:

other:

Conclusions:

The auto-flammability temperture of DIOFB was reported as 260 °C according to EU Method A.15. The ambient pressure during the test was 1000.4 hPa to 1018.0 hPa.

Executive summary:

The auto-flammability of DIOFB was determined according to EU Method A.15; however the study was not GLP. Therefore, the study is considered reliable with restrictions.

Description of key information

The auto-ignition temperature of the test item was determined in a GLP-compliant study performed in accordance with EC A.15 Method and DIN 51794 Standard. The test item is auto-ignitable with an auto-ignition temperature of 220°C at atmospheric pressure (1020-1025 hPa). This experimental value is further supported by a non-GLP study reporting an auto-ignition temperature 260°C at atmospheric pressure (1010-1018 hPa).

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

220 °C

Additional information

The auto-ignition temperature of the test item was determined in a GLP-compliant study performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and is selected as a key study for the endpoint. A non-GLP study is also reported for the endpoint and selected as supporting study (Klimisch 2).