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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 952-026-5 | CAS number: -
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:
- other:
- Justification for type of information:
- JUSTIFICATION FOR DATA WAIVING
A study for auto-flammability is not required as Synthetic Wollastonite shows no self-heating to 400 °C, based on inert inherent properties.
Furthermore, experience of manufacture and use shows no evidence of self-heating. A study carried out on the analogue substance Kieselghur soda ash flux calcined showed no evidence of self-heating. Justification for read-across is warranted given the similarities in toxicity profile and physico-chemical properties for Soda-ash flux calcined kieselghur and synthetic wollastonite. - Reason / purpose for cross-reference:
- data waiving: supporting information
- Endpoint:
- auto-flammability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- Testing was conducted between 15 March 2010 and 23 March 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: Method N.4 of the UN Transport of Dangerous Goods, Manual of Tests and Criteria, fourth revised edition, 2003
- GLP compliance:
- yes (incl. QA statement)
- Conclusions:
- A negative result was obtained. Therefore the material is not classified in Division 4.2
Referenceopen allclose all
There were no signs of self-ignition or self heating over the duration of the test.
Description of key information
A study for auto-flammability is not required as Synthetic Wollastonite shows no self-heating to 400 °C, based on inert inherent properties.
Furthermore, experience of manufacture and use shows no evidence of self-heating. A study carried out on the analogue substance Kieselghur soda ash flux calcined showed no evidence of self-heating, based on this it can be concluded that Synthetic Wollastonite should be considered to be not classified for auto-flammability.
Key value for chemical safety assessment
Additional information
In accordance with column 2 of REACH Annex VII, testing (required in section 7.12) is not needed because the test item shows no self-heating to 400 °C, based on inert inherent properties. Furthermore a study carried out on the analogue substance Kieselghur soda ash flux calcined, was negative for auto-flammability.
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.
