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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
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EC number: 231-753-5 | CAS number: 7720-78-7
Stability: thermal, sunlight, metals
Administrative data
Link to relevant study record(s)
Description of key information
Thermal decomposition may release Cl2, HCl and SO2 at high temperatures.
Additional information
It should be noted that according to company data water soluble ferrous and ferric sulphate and/or chlorine salts decompose at elevated temperatures to give toxic gases (Chlorine CAS 7782-50-5, Hydrogen chloride CAS 7647-01-0, and/or Sulphur dioxide CAS 7446-09-5).
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:
According to the available information no relevant instability is considered of the sbmission item and no indication for classification is given.
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.
