Canada | Cyanides: The Final Screening Assessment for Cyanides was published. The Proposed Risk Management Approach for Cyanides was also published

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.

Summary of publications

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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