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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Physical & Chemical properties

Flammability

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Administrative data

Link to relevant study record(s)

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Endpoint:
pyrophoric 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 known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied
Endpoint:
substances / mixtures which in contact with water emit flammable gases
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water
Endpoint:
flammable solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:

Description of key information

Testing of flammability is not considered to be required for the substance.


A study on flammability in contact with water does not need to be conducted since iron sinter is inert and does not react with water.


A study on pyrophoric properties does not need to be conducted, since experience in production and handling shows the material to be stable at room temperature.

Key value for chemical safety assessment

Additional information

Testing of flammability is not considered to be required for the substance. With the exception of small amounts of iron (II) in tri-iron tetroxide and iron (II) oxide, all the metal ions in iron sinter are present in their maximum oxidation states and further oxidation is not possible. Tri-iron tetroxide is a mixed oxide [Fe(II)2Fe(III)4O] and the rate of oxidation is very slow.


A study on flammability in contact with water does not need to be conducted since iron sinter is inert and does not react with water.


A study on pyrophoric properties does not need to be conducted, since experience in production and handling shows the material to be stable at room temperature. Furthermore, in the iron sintering process the sinter product is cooled by forcing air through the hot product on rotary coolers.

Justification for classification or non-classification