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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

Description of key information

Assessed regarding the chemical nature

Key value for chemical safety assessment

non explosive

Additional information

Testing for this endpoint has been waived in accordance with column 2 restrictions. Frost et al. (2006) showed lack of explosion until total thermal decomposition.

Explosivity is associated with processes where reaction can give rise to rapid release of a gas under exothermic conditions. The iron ion in the submission item is present in a very stable oxidation state. The salt is therefore not expected to be explosive. The likelihood of explosive properties can generally be predicted on the basis of functional groups present in the molecule and is negated for the submission item. It is a stable salt, which contains only elements in their highest oxidation state and oxygen in its lowest oxidation state.

  • Frost RL, Wills RA, Kloprogge JT, Martens WN (2006). Thermal decomposition of hydronium jarosite (H3O)Fe3 (SO4)2 (OH)6. DOI 10.1007/s10973-005-6908-0 Print ISSN 1388-6150 Online ISSN 1572-8943 Journal of Thermal Analysis and Calorimetry 83(1):213-8. URL

Justification for classification or non-classification

The following statement bases on DSD, the Commission Directive 2001/59/EC (28th ATP of Council Directive 67/548/EEC), and CLP (5th ATP of Regulation (EC) No 1272/2008 of the European Parliament and of the Council) as implementation of UN-GHS in the EU:

Regarding the chemical nature of the submission item no explosiveness is assumed.