4-chloroformylphthalic anhydride

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:

From 15 July 2015 to 30 September 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

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reference to same study

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

May 2003

Deviations:

no

Qualifier:

according to guideline

Guideline:

IEC 60079-4 (Electrical apparatus for explosive gas atmospheres. Part 4: Method of test for ignition temperature)

Version / remarks:

1975

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

4-chloroformylphthalic anhydride
To melt the test item, the test item was placed in an oil bath at a temperature of approximately 70°C.

Key result

Auto-ignition temperature:

605 °C

Atm. press.:

>= 1 034.2 - <= 1 037.2 hPa

Preliminary test

The estimated auto-ignition temperature was 610°C (70 μL sample).

Main study

Test	Volume (µl)	Auto-ignition temperature (°C)	Ignition delay (s)	Colour of the flame	Minimum auto-ignition temperature (°C)
1	50	611	5	yellow
	70	610	5	yellow	610
	150	619	4	orange
2	25	616	4	yellow
	90	609	5	orange	609
	140	616	5	orange
3	45	609	6	yellow
	80	607	3	yellow	607
	135	615	5	orange

The atmospheric pressure during the performance of the main study was between 1034.2 and 1037.3h Pa.

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 < 20°C. According to the guidelines, no further testing was required.

The lowest temperature at which ignition of the test item occurred was 607°C with 80µl of test item. This temperature was rounded down to the nearest multiple of 5°C giving an auto-ignition temperature of the test item of 605°C.

Conclusions:

The auto-ignition temperature of the test item is 605°C at 1034.2 to 1037.3 hPa.

Executive summary:

The auto-ignition temperature was determined according to recognized guidelines (EU A.15, DIN 51794 and IEC 79-4) and under GLP.

No deviation from the guidelines was observed during the test.

The behaviour of the test item was estimated in a preliminary test. Then a main study, consisting of 3 test series was performed, and the minimum value was retained.

The auto-ignition temperature of the test item is 605°C at 1034.2 to 1037.3 hPa.

Description of key information

No specific precautions required during handling and use.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:

605 °C

Additional information

The auto-ignition temperature was determined according to recognized guidelines (EU A.15, DIN 51794 and IEC 79-4) and under GLP.

No deviation from the guidelines was observed during the test.