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Auto flammability

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Reference
Endpoint:
auto-ignition temperature (liquids)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
Deviations:
no
Qualifier:
according to
Guideline:
DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
Deviations:
no
GLP compliance:
yes
Specific details on test material used for the study:
Batch No.: 0900243308,
Content: 98.52% Resorcinol Diacetate,
Physical state: Clear colourless liquid,
Expiry date: September 16, 2017
Storage conditions: Ambient temperature (10 °C to 30 °C), protected from light
Key result
Auto-ignition temperature:
545 °C
Atm. press.:
>= 1 007.2 - <= 1 015.6 hPa
Remarks on result:
other: temperature is decreased by 5 °C steps
Auto-ignition temperature:
549 °C
Atm. press.:
>= 1 007.2 - <= 1 015.6 hPa
Remarks on result:
other: temperature is decreased by 2 °C steps
Auto-ignition temperature:
551 °C
Atm. press.:
>= 1 007.2 - <= 1 015.6 hPa
Remarks on result:
other: temperature is decreased by 2 °C steps

Main test

The lowest auto-ignition temperature of the test item was determined to be 547 °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 545 °C.

Preliminary test

The lowest auto-ignition temperature of the test item was determined to be 572 °C at a barometric pressure: 1012.6 hPa in the preliminary test.

Conclusions:
The auto-ignition temperature of Resorcinol Diacetate according to the test conditions in the sense of the European Commission Regulation (EC) No. 440/2008, Method A.15. is 545 °C.
Executive summary:

The purpose of this study was the determination of the auto-ignition temperature (liquids and gases) of Resorcinol Diacetate according European Commission Regulation (EC) No. 440/2008, A.15.

The main test (2 °C steps) is repeated at least two times to verify the result of the first main test (2 °C steps). At least three lowest results of the tests with 2 °C steps have to be within a range of 10 °C for auto-ignition temperatures below 300 °C and within a range of 20 °C for auto-ignitiontemperatures above 300 °C.

Due to safety reasons and according to the standard DIN 51794:2003-05 the lowest measured temperature at which an ignition is observed, is rounded to the next lower number divisible by 5.

 Main test series  Auto-ignition temperature / °C  Time lag / s
 1st main test (5 K steps)  547  2
 1st main test (2 K steps)  549  6
 2nd main test (2 K steps)  551  8
 3rd main test (2 K steps)  551  6

The auto-ignition temperature of Resorcinol Diacetate is 545 °C.

Description of key information

The purpose of this study was the determination of the auto-ignition temperature (liquids and gases) of Resorcinol Diacetate according European Commission Regulation (EC) No. 440/2008, A.15.

The main test (2 °C steps) is repeated at least two times to verify the result of the first main test (2 °C steps). At least three lowest results of the tests with 2 °C steps have to be within a range of 10 °C for auto-ignition temperatures below 300 °C and within a range of 20 °C for auto-ignitiontemperatures above 300 °C.

Due to safety reasons and according to the standard DIN 51794:2003-05 the lowest measured temperature at which an ignition is observed, is rounded to the next lower number divisible by 5.

 Main test series  Auto-ignition temperature / °C  Time lag / s
 1st main test (5 K steps)  547  2
 1st main test (2 K steps)  549  6
 2nd main test (2 K steps)  551  8
 3rd main test (2 K steps)  551  6

The auto-ignition temperature of Resorcinol Diacetate is 545 °C.

Key value for chemical safety assessment

Autoflammability / Self-ignition temperature at 101 325 Pa:
545 °C

Additional information