Registration Dossier
Registration Dossier
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EC number: 284-895-5 | CAS number: 84989-06-0 The fraction of tar acids, rich in 2,4- and 2,5-dimethylphenol, recovered by distillation of low-temperature coal tar crude tar acids.
Auto flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative self-ignition temperature (solids)
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- the study does not need to be conducted because the substance is a solid having a melting point <= 160°C
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Qualifier:
- according to guideline
- Guideline:
- DIN 51794 (Testing of mineral oil hydrocarbons - Determination of ignition temperature)
- GLP compliance:
- no
- Auto-ignition temperature:
- > 515 °C
- Atm. press.:
- 1 013 mBar
- Endpoint:
- auto-ignition temperature (liquids)
- Type of information:
- experimental study
- Adequacy of study:
- weight of evidence
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Test performed to guideline method as part of the analysis of Xylenol mixtures.
- Qualifier:
- according to guideline
- Guideline:
- ASTM E659 (Standard test method for autoignition temperature of liquid chemicals)
- GLP compliance:
- no
- Auto-ignition temperature:
- 470 °C
- Atm. press.:
- 760 mm Hg
Referenceopen allclose all
Description of key information
Auto-ignition temperature: 470 to >515 °C at 1013 mBar
(several materials were tested according to DIN 51794, ASTM E659)
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 470 °C
Additional information
The reported values for Auto-ignition temperature for liquid or low-melting Tar acids, xylenol fraction range from 470 °C to >515 °C at 1013 mBar. Testing for solid Tar acids, xylenol fraction does not need to be conducted because the substance has a melting point <= 160 °C and so self-heating is excluded.
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