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Reference
Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27.02.-28.02.2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
GLP compliance:
yes (incl. certificate)
Key result
Remarks on result:
no self-ignition observed up to the melting point

The temperatures which were measured in the experiment are presented in the following table:

Time interval in min    Temperature (oven) in °C Temperature (test item) in °C 
 0 19  19 
 60 49  45 
 120 78  74 
 180 106  103 
 240 136  132 
 258 152  309 
 300 166  165 
 324 179  17 

The test item showed an increase of the temperature of the sample up to 309 °C (which lies below the threshold of 400 °C). This increase is considered to be due to melting and decomposition. After the experiment, a change in appearance (molten mass) was observed an the test item had become brown (decomposition).

No observations were made which might cause doubts concerning the validity of the study outcome.

Conclusions:
2,2'-azobis(2-amidinopropane)dihydrochloride does not show self-ignition up to 180 °C.
Executive summary:

The relative self-ignition temperature of 2,2'-azobis(2-amidinopropane)dihydrochloride was determined by placing the test item into a stainless steel cube and heating ithe environment (laboratory oven) from room temperature to 180 °C.

The test item showed an increase of the temperature of the sample up to 309 °C (which lies below the threshold of 400 °C. The increase is considered to be due to melting and decomposition. After the experiment, a change in appearance (molten mass) was observed and the test item had become brown (decompositon).

Therefore the test item 2,2'-azobis(2-amidinopropane)dihydrochloride should be stated as showing no self-ignition up to 180 °C (decomposition temperature).

Description of key information

2,2'-azobis(2-amidinopropane)dihydrochloride does not show self-ignition up to 180 °C.

Key value for chemical safety assessment

Additional information