Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 294-436-0 | CAS number: 91722-33-7 A complex combination of organic compounds separated after condensation of the vapors from the destructive distillation of wood.
Auto flammability
Administrative data
Link to relevant study record(s)
Description of key information
The auto ignition temperature was determined in three independent determinations. A
lowest value of the main study of 441 °C was found.
Therefore, the auto-ignition temperature according to EU A.15 (rounded down to a whole
multiple of 5 °C) of Tar wood is 440 °C.
Key value for chemical safety assessment
- Autoflammability / Self-ignition temperature at 101 325 Pa:
- 440 °C
Additional information
This study was performed in order to determine the auto ignition temperature of the test
item Tar wood.
Auto ignition temperature is a physico-chemical property which is needed for hazard assessment
and safety purposes. The method determines the minimum temperature of the
inner surface of an enclosure that will result in ignition of a gas, vapour or liquid injected
into the enclosure. The auto ignition temperature of a substance is the lowest temperature
at which it will spontaneously ignite in a normal atmosphere without an external source of
ignition, such as a flame or spark.
The requirements for repeatability of the DIN standard are stated as follows: Three lowest
values of the main study have to lie within a range of 10 K (if auto ignition temperature is
below 300 °C) respectively 20 K (if auto ignition temperature is above 300 °C).
The lowest value of the auto ignition temperature is 441 °C. This value was determined
using 5 respectively 3 drops test item. The test item showed auto ignition after 10 respectively
11 seconds.
The auto ignition temperature (result of determination) is the lowest value from the lowest
values of the three experiments, rounded down to a whole multiple of 5 °C. Therefore, the
auto ignition temperature is stated as 440 °C.
The study was conducted according to procedure and demands of EU-Method A.15 and
DIN 51794. The acceptable range which is demanded in the DIN standard was fulfilled.
All measured values show good correlation. No observations were made which might
cause doubts concerning the validity of the study outcome.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
