Registration Dossier
Registration Dossier
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EC number: 221-656-6 | CAS number: 3179-31-5
Auto flammability
Administrative data
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 019
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Deviations:
- yes
- Remarks:
- The heating rate slightly deviated from the value stated in the guideline of 0.5 °C/min (0.57 °C/min). This is considered as uncritical as a nominal heating rate of 0.5 °C/min was adjusted at the instrument and only a minimal deviation was ob-served.
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 1,2,4-triazole-3-thiol
- EC Number:
- 221-656-6
- EC Name:
- 1,2,4-triazole-3-thiol
- Cas Number:
- 3179-31-5
- Molecular formula:
- C2H3N3S
- IUPAC Name:
- 4H-1,2,4-triazole-3-thiol
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Relative self-ignition temperature (solids)
- Key result
- Relative self-ignition temperature:
- > 220 °C
- Remarks on result:
- no self ignition observed under the test conditions
Applicant's summary and conclusion
- Conclusions:
- No increase in the temperature of the sample in comparison to that of the oven could be detected; also no signs of ignition could be observed.
The test item 3-Mercapto-1,2,4-triazole is considered as showing no self-ignition up to the melting range of 218.5 – 220.0 °C under the test conditions
No observations were made which might cause doubts concerning the validity of the study outcome. - Executive summary:
The auto-flammability behaviour was determined by placing the test item into a stainless steel cube and heating from room temperature to an oven temperatureof 225 °C with the ZPA-3 oven.
No increase in the temperature of the sample in comparison to that of the oven could be detected, also no signs of ignition could be observed.
Therefore, the test item3-Mercapto-1,2,4-triazoleshould be considered as
showing no self-ignition up to the melting range of 218.5 – 220.0 °C”
under the test conditions.
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