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EC number: 242-893-1 | CAS number: 19223-55-3
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 21 May 2012 to 30 August 2012
- 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 (incl. QA statement)
- Remarks:
- 2012-12-15
- Key result
- Auto-ignition temperature:
- > 392 - < 400 °C
- Atm. press.:
- > 97.9 - < 98 kPa
- Conclusions:
- The mean self-ignition temperature of the test item was: 396 ± 4 °C (corrected temperature).
- Executive summary:
The auto-ignition temperature of the substance (2-Hydroxy-3-sulphopropyl) dimethyl[3-[(1-oxododecyl) amino]propyl]ammonium hydroxide (EC 242-893-1) in aqueous solution was investigated in a GLP-compliant study (Grevin, 2012) performed in accordance with EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)). The mean self-ignition temperature of the mixture was 396 ± 4 °C. The study was performed on a commercial product (aqueous solution) as the substance EC 242-893-1 is manufactured and used in a liquid form.
Reference
Results of preliminary test:
Volume of test item injected in the oven 70 μL
| Self-ignition temperature (°C) | Self-ignition | Maximal temperature of the air recorded in the center of the test flask after self-ignition (°C) | Atmospheric pressure (kPa) | Relative humidity (%) | ||||
| Assay N° | Observed | Corrected | Y / N | Lag (s) | Observed | Corrected | ||
| 1 | 98 | 98 | No | / | / | / | 98.0 | 61 |
| 2 | 149 | 149 | No | / | / | / | 98.0 | 60 |
| 3 | 197 | 197 | No | / | / | / | 98.0 | 61 |
| 4 | 248 | 248 | No | / | / | / | 98.0 | 62 |
| 5 | 299 | 299 | No | / | / | / | 98.0 | 61 |
| 6 | 351 | 351 | No | / | / | / | 97.9 | 64 |
| 7 | 449 | 449 | Yes | 40 | 450 | 450 | 97.9 | 62 |
| 8 | 433 | 433 | Yes | 43 | 434 | 434 | 97.9 | 62 |
| 9 | 420 | 420 | Yes | 47 | 421 | 421 | 97.9 | 64 |
| 10 | 412 | 412 | Yes | 48 | 413 | 413 | 97.9 | 65 |
| 11 | 402 | 402 | Yes | 48 | 403 | 403 | 97.9 | 65 |
| 12 | 386 | 386 | No | / | / | / | 97.9 | 66 |
The self ignition temperature was between 386 and 402 °C (corrected temperatures).
Results of the main test:
Volume of test item injected in the oven 70 μL Only the self ignition runs for each assay are summarized in the following table:
| Self-ignition temperature (°C) | Self-ignition | Maximal temperature of the air recorded in the center of the test flask after self-ignition (°C) | Atmospheric pressure (kPa) | Relative humidity (%) | |||
| Assay N° | Observed | Corrected | Lag (s) | Observed | Corrected | ||
| 1 | 396 | 396 | 45 | 398 | 398 | 98.0 | 67 |
| 2 | 396 | 396 | 44 | 397 | 397 | 97.9 | 65 |
| 3 | 397 | 397 | 41 | 398 | 398 | 97.9 | 60 |
| 4 | 395 | 395 | 51 | 396 | 396 | 97.9 | 60 |
| 5 | 395 | 395 | 68 | 396 | 396 | 97.9 | 60 |
Description of key information
The auto-ignition temperature of the substance (2-Hydroxy-3-sulphopropyl) dimethyl[3-[(1-oxododecyl) amino]propyl]ammonium hydroxide (EC 242-893-1) in aqueous solution was investigated in a GLP-compliant study (Grevin, 2012) performed in accordance with EU Method A.15 (Auto-Ignition Temperature (Liquids and Gases)). The mean self-ignition temperature of the mixture was 396 ± 4 °C. The study was performed on a commercial product (aqueous solution) as the substance EC 242-893-1 is manufactured and used in a liquid form.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 396 °C
Additional information
The auto-ignition temperature of the substance (2-Hydroxy-3-sulphopropyl) dimethyl[3-[(1-oxododecyl) amino]propyl]ammonium hydroxide (EC 242-893-1) in aqueous solution was investigated in a GLP-compliant study (Grevin, 2012) performed in accordance with standard methods, without deviations. The study is considered as reliable (Klimisch 1) and was selected as key study for the endpoint.
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