Skip to content

Canadian waste code finder

Ontario waste class 112 Acid solutions carrying metals such as lead or chrome.

  • Free, no account
  • Based on Ontario Regulation 347 and registration guidance
  • Nothing is stored

Find a Canadian waste code

112, Heavy-metal acid waste.

  • Ontario inorganic wastes

    Heavy-metal acid waste

Ontario group: acid solutions.

Heavy-metal acid waste, inorganic acid solutions that carry toxic metals, in Ontario's group of acid solutions.

Is Ontario 112 hazardous waste?

Not from the code alone. Ontario 112 describes the waste stream, not whether it is hazardous. Ontario decides that from the hazardous characterization or liquid-industrial status, and from the exclusions. The 3-digit class needs a primary characterization letter to form the waste number.

For subject waste, the generator enters the class-and-letter waste number in the waste details of the Ontario hazardous waste manifest. Ontario’s exclusions and shipment rules also apply.

What does Ontario 112 cover?

Acidic heavy-metal liquids, sludges and residues. Examples are sulphuric, hydrochloric or nitric acid solutions carrying heavy metals such as lead, tin, cadmium, zinc, chromium, nickel or copper. Discarded chromic acid and acidic air-pollution-control sludge from secondary lead smelting also fit.

Is heavy-metal acid waste Ontario 112 or another class?

CodeWhen it fits
112The stream is acidic heavy-metal liquids, sludges and residues.
113The acid contains metals or non-metals other than the heavy-metal group.

When several characterizations apply, the registration flowchart picks the primary one. A 3-digit class doesn't replace the flowchart or the exclusions.

Which wastes take Ontario 112?

WasteWhen it’s 112
Spent metal plating bathsAcidity and heavy-metal content
Waste hydrochloric acidAcidity and heavy-metal content
Waste sulphuric acidAcidity and heavy-metal content
Solutions of sulphuric, nitric or hydrochloric acid bearing heavy metals: lead, tin, cadmium, zinc, chromium, nickel, copper or other heavy metalsAcidity and heavy-metal content
Discarded chromic acidAcidity and heavy-metal content
Acidic emission-control sludge from secondary lead smeltingAcidity and heavy-metal content

Which codes sit beside Ontario 112?

CodeWhat it is
111Spent pickling acid
114Other inorganic acid waste
121Heavy-metal alkaline waste
122Other cyanide-free alkaline waste
123Alkaline phosphate waste
131Neutralized heavy-metal waste
132Other neutralized metal waste
133Brine and chlor-alkali residues