Registration Dossier

Administrative data

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

In accordance with the ECHA Guidance R.10 (May 2008), the derivation of PNECs is required for the chemical safety assessment (CSA) of substances manufactured/imported/used in quantities from 10 t/a onwards. Thus, no PNECs have been derived for the REACH registration of Chromium diboride in the tonnage band 1-10 t/a (REACH Annex VII).

Conclusion on classification

Studies investigating the acute toxicity of Chromium diboride to aquatic invertebrates and algae do not have to be conducted as the substance is highly insoluble in water, hence aquatic toxicity is unlikely to occur. Thus, a classification for aquatic environmental hazards is not warranted.