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EC number: 944-170-2 | CAS number: -
Auto flammability
Administrative data
Link to relevant study record(s)
- 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
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- GLP compliance:
- not specified
- Key result
- Remarks on result:
- no self ignition observed under the test conditions
- Remarks:
- no self-ignition temperature observed up to the decomposition temperature
- Conclusions:
- The relative self-ignition temperature of C8 -18 AAPB was investigated in a study conducted according to EU Method A.16 (Relative Self-Ignition Temperature for Solids). Up to the decomposition temperature (208°C) no self-ignition temperature was observed.
- Executive summary:
The relative self-ignition temperature of C8 -18 AAPB was investigated in a study conducted according to EU Method A.16 (Relative Self-Ignition Temperature for Solids). C8 -18 AAPB is a solid, powdery substance which decomposes above 208°C. Up to the decomposition temperature (208°C) no self-ignition temperature was observed.
- Endpoint:
- auto-flammability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 5 December - 28 December 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases))
- Deviations:
- no
- GLP compliance:
- yes
- Auto-ignition temperature:
- 425 °C
- Atm. press.:
- 1 023.4 hPa
- Conclusions:
- FORMAMIDOPROPYLBETAINE is auto-ignitable with an auto-ignition temperature of 425 °C.
- Executive summary:
The determination of the auto-ignition temperature of the test substance was performed in accordance with EEC-Directive 92/69 EEC, A 15 "Auto-Ignition temperature (liquids and gases), 1992", DIN 51794 "Bestimmung der Zündtemperatur" (1978) and IEC standard 79-4: Method of test for ignition temperature (1975).
Three tests were performed. In each test, different volumes of test substance were injected successive times into a test vessel. The temperature in the test vessel was lowered gradually from a sufficienty high temperature until a temperature at which it was obvious that no more ignition occurred. The lowest measured auto-ignition temperature was 429 °C at an injection volume of 90 µL. In accordance with DIN 51794, this temperature was rounded down to the nearest 5 °C giving the auto-ignition temperature for the test substance. In conclusion, FORMAMIDOPROPYLBETAINE is auto-ignitable with an auto-ignition temperature of 425 °C.
Referenceopen allclose all
Test |
Injected test substance volume [µL] |
Auto-ignition temperature [°C] |
Time lag [s] |
Test 1
|
50 70 125 |
469 439 447 |
12 22 27 |
Test 2
|
50 75 200 |
459 439 447 |
14 22 25 |
Test 3
|
50 90 150 |
464 429 434 |
14 23 24 |
Description of key information
no self-ignition up to the decomposition temperature (EU method A.16; RL1; no data on GLP); read-across: C8-18 AAPB
Key value for chemical safety assessment
Additional information
No experimental data are available for the substance itself. However, reliable data are available for the closely related source substances C8 -18 AAPB and Formamidopropylbetaine.
The relative self-ignition temperature of C8 -18 AAPB was investigated in a study conducted according to EU Method A.16 (Relative Self-Ignition Temperature for Solids). C8 -18 AAPB is a solid, powdery substance which decomposes above 208°C. Up to the decomposition temperature (208°C) no self-ignition temperature was observed.
The determination of the auto-ignition temperature of Formamidopropylbetaine was performed in accordance with EEC-Directive 92/69 EEC, A 15 "Auto-Ignition temperature (liquids and gases), 1992", DIN 51794 "Bestimmung der Zündtemperatur" (1978) and IEC standard 79-4: Method of test for ignition temperature (1975).
Three tests were performed. In each test, different volumes of test substance were injected successive times into a test vessel. The temperature in the test vessel was lowered gradually from a sufficiently high temperature until a temperature at which it was obvious that no more ignition occurred. The lowest measured auto-ignition temperature was 429 °C at an injection volume of 90 µL. In accordance with DIN 51794, this temperature was rounded down to the nearest 5 °C giving the auto-ignition temperature for the test substance. In conclusion, Formamidopropylbetaine is auto-ignitable with an auto-ignition temperature of 425 °C.
Due to close structural similarities no self-ignition temperature up to the decomposition temperature is expected for the target substance C8-10 Alkylamidopropyl betaine.
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