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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 244-214-4 | CAS number: 21109-95-5
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
Description of key information
Hydrogen sulfide and Ba will be released from BaS under normal environmental conditions. No data for sulfide are identified for this endpoint, and are not required if indirect exposure of the soil compartment is unlikely. For barium, the NOEC values of 258 and 433 mg Ba/kg soil dw were put forward for the derivation of a terrestrial PNEC. Expressed as BaS, these values become 318.2 mg BaS/kg soil dw and 534.1 mg BaS/kg soil dw, respectively.
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 318.2 mg/kg soil dw
Additional information
Sulfide: According to Column 2 of Annex IX of the REACH regulation, these studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely. Because all identified uses are industrial indoor (or enclosed) processes, no release of the substances to soil is expected. As Na2S and NaHS are not expected to occur as such in soil because of hydrolysis and/or oxidation and/or precipitation processes, no terrestrial toxicity studies can be conducted using the compounds as such.
Barium: Kuperman et al (2008) reported reliable NOEC-values (added as barium nitrate) for twodifferent soil macro-organisms (E. fetida, E. crypticus). The derived effect values were based on ecological relevant endpoints (mortality and reproduction). Reproduction was the most sensitive endpoint, and NOEC-values were 258 and 433 mg Ba/kg soil dw for E. fetida and E. crypticus, respectively. Expressing these values based on the substance (BaS), these NOECs become 318.2 mg BaS/kg soil dw and 534.1 mg BaS/kg soil dw, respectively.
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.
