Registration Dossier
Registration Dossier
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EC number: 221-070-0 | CAS number: 2997-92-4
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Administrative data
Link to relevant study record(s)
- 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
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- GLP compliance:
- yes (incl. QA statement)
- Key result
- Remarks on result:
- no self-ignition observed up to the melting point
- 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).
Reference
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.
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
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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