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These substances were identified for action under the Chemicals Management Plan (CMP). The ecological portion of the screening assessment used a moiety-based approach that focused on free cyanide [hydrogen cyanide (HCN) and the cyanide anion (CN-)] and precursors of free cyanide. As such, the ecological moiety conclusion includes, but is not limited to, the 10 substances identified in the table below; however, the human health conclusion is limited to those 10 substances.
Substance group | CAS RN (cyanides that met categorization criteria) | Common name | DSL name | Public comments on the draft screening assessment | Final screening assessment | Proposed risk management approach | Conclusion on section 64 criteria | Follow-up activities |
---|---|---|---|---|---|---|---|---|
Cyanides | 74-90-8 | Hydrogen cyanide | Hydrocyanic acid | HTML | HTML | HTML | Meets one or more of the criteria | Refer to proposed risk management approach |
143-33-9 | Sodium cyanide | Sodium cyanide | ||||||
506-61-6 | Potassium dicyanoargentate | Argentate(1-), bis(cyano-C)-, potassium | ||||||
13601-19-9 | Tetrasodium ferrocyanide (yellow prussiate of soda) | Ferrate(4-), hexakis(cyano-C)-, tetrasodium, (OC-6-11) | ||||||
13746-66-2 | Tripotassium ferricyanide | Ferrate(3-), hexakis(cyano-C)-, tripotassium, (OC-6-11)- | ||||||
13943-58-3 | Tetrapotassium ferrocyanide (yellow prussiate of potash) | Ferrate(4-), hexakis(cyano-C)-, tetrapotassium, (OC-6-11)- | ||||||
13967-50-5 | Potassium dicyanoaurate | Aurate(1-), bis(cyano-C)-, potassium | ||||||
14038-43-8 | Ferric ferrocyanide (Prussian blue, insoluble) | Ferrate(4-), hexakis(cyano-C)-, iron(3+) (3:4), (OC-6-11)- | ||||||
25869-00-5 | Ferric ammonium ferrocyanide | Ferrate(4-), hexakis(cyano-C)-, ammonium iron(3+) (1:1:1),(OC-6-11)- | ||||||
25869-98-1 | Potassium ferric ferrocyanide (Prussian blue, soluble or Turnbull's blue) | Ferrate(4-), hexakis(cyano-C)-, iron(3+) potassium (1:1:1), (OC-6-11)- |
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