Cyanides
Information sheet
These substances were identified for action under the Chemicals Management Plan (CMP).
The ecological portion of the screening assessment used a moiety-based approach and thereby includes free (unbound) cyanide [hydrogen cyanide (HCN) and the cyanide anion (CN-)] and precursors of free cyanide. As such, the ecological moiety assessment is not limited to consideration of the 10 substances having met the categorization criteria. The human health portion of the screening assessment focuses on the 10 cyanides that were identified as priorities for assessment.
| Substance group | CAS RN (cyanides that met categorization criteria) | Common name | DSL name | Draft screening assessment | Risk management scope | Proposed conclusion on section 64 criteria |
|---|---|---|---|---|---|---|
| Cyanides | 74-90-8 | Hydrogen Cyanide | Hydrocyanic acid | HTML | HTML | Meets one or more of the criteria |
| 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 | 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)- |
| Date | Activity |
|---|---|
| January 2019 | Anticipated publication of the final screening assessment and the proposed risk management approach for cyanides. |
| February 10, 2018 | Publication and start of 60-day public comment period on the draft screening assessment and the risk management scope for cyanides. The related notice was published in the Canada Gazette, Part I: Vol. 152, No. 6. |
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