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A4050 Basel waste code Salts & compounds that release toxic cyanide.

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  • Based on ECCC's classification guide and SOR/2021-25
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A4050, Cyanide-bearing waste.

  • Basel List A codes

    Cyanide-bearing waste

Use A4050 for cyanide-bearing waste as a presumptively hazardous Basel waste.

Listed withBasel List A codes

Basel List A waste that contains or is contaminated with inorganic or organic cyanides. Solid precious-metal residues are excluded.

Is Basel A4050 hazardous waste?

Normally yes. Basel A4050 is a List A description, so the material counts as hazardous unless evidence shows it has no Annex III hazardous characteristic. The description and any exclusions still have to match.

For federally regulated international shipments, the applicant enters the waste classification in the waste-line details of the federal notification in CNMTS. Check the movement rules and exclusions.

What does Basel A4050 cover?

Covers waste that contains, consists of or is contaminated by organic or inorganic cyanides. Solid precious-metal residues with only traces of inorganic cyanide are excluded.

Official wording
Read the official entry

Is cyanide waste Basel A4050?

CodeWhen it fits
A4050Waste with organic or inorganic cyanides, unless it is precious-metal residue with only traces of inorganic cyanide.

Pick the entry whose description and conditions match the waste. The code classifies the waste. It doesn't settle whether SOR/2021-25 applies, what it excludes, what the destination country controls or the intended operation.

Which codes sit beside Basel A4050?

CodeWhat it is
A4010Pharmaceutical process waste outside List B
A4020Clinical, treatment and medical-research waste
A4030Biocide and crop-treatment product waste
A4040Wood-preservative process waste
A4060Oil or hydrocarbon mixed with water
A4070Ink, dye, pigment, paint or finish process waste
A4080Explosive waste outside List B
A4090Acidic or alkaline solution outside List B

Sources