Potassium & Fertilizer Compounds Dangerous Goods, Cleared for YYZ.
Exporting potassium metal, potassium nitrate, or fertilizer-grade oxidizer compounds by air out of Toronto Pearson (YYZ)? AÉRO-DG classifies, packages, and documents potassium industry materials to IATA UN 2257, UN 1490, and UN 1451 requirements.
Potassium Metal Reacts Violently With Water - Class 4.3.
Potassium metal is UN 2257 Class 4.3 Dangerous When Wet - it releases flammable hydrogen gas on contact with moisture. Potassium nitrate is UN 1490 Class 5.1, an oxidizer that must be segregated from flammables. Shipping either by air without the correct classification, moisture-excluding packaging, and Shipper's Declaration means the airline rejects it at acceptance. We handle the classification, packaging, and documentation so your shipment clears YYZ the first time.
What AÉRO-DG Does for Potassium & Fertilizer Exporters
Dangerous-When-Wet Metal Packaging
- → Potassium metal: UN 2257 Class 4.3 airtight, moisture-excluding packaging
- → Segregation from any water-based or moisture-generating cargo in the same consignment
- → SDS review to confirm which fertilizer formulations are DG-regulated
- → Correct packing group determination based on concentration and particle size
Nitrate & Nitrite Oxidizer Compliance
- → Potassium nitrate: UN 1490 Class 5.1 oxidizer packaging for fertilizer-grade shipments
- → Potassium nitrite (UN 1451) and mixed nitrate/nitrite blends (UN 1487) classification
- → Segregation compliance - oxidizers packed separately from flammables and organics
- → Documentation signed by an IATA-certified DG specialist
UN-certified packaging and IATA documentation prepared for fertilizer producers, potassium chemical suppliers, and industrial exporters shipping through Toronto Pearson (YYZ).
How It Works
Tell us what's shipping
Potassium metal, potassium nitrate, nitrite, or another fertilizer compound - send us the SDS so we can confirm the correct UN classification and packing group.
We package and verify compliance
UN-specification packaging matched to the hazard class, moisture-excluding containment for Class 4.3 metal, and segregation checked across the full consignment.
We prepare documents and tender at YYZ
Shipper's Declaration completed to the correct hazard class, then tendered through the YYZ freight cargo process for your booked flight.
Built for Potassium & Fertilizer Compound Shippers
From a single potassium metal sample to recurring fertilizer-grade oxidizer exports, we work the way potassium and fertilizer companies actually ship - correctly classed, on time for YYZ cargo departures.
Fertilizer Producers
Exporting potassium nitrate or nitrite fertilizer blends? We handle UN 1490/UN 1451 Class 5.1 packaging so your shipment clears the cargo counter.
Potassium Chemical Suppliers
Shipping potassium metal for industrial or lab use? We manage UN 2257 Class 4.3 airtight packaging and moisture-exclusion verification.
Agricultural & Industrial Chemical Traders
Importing or exporting oxidizer-grade potassium compounds? We manage Class 5.1 classification and UN-spec packaging for the full shipment.
Fertilizer Logistics & Procurement
Need a DG specialist to keep recurring potassium and fertilizer exports moving through YYZ? We work with logistics and procurement teams to keep documentation ready ahead of each shipment.
Potassium & Fertilizer Exporters Ask Us
Why is potassium metal classified as Dangerous Goods for air shipping?
Potassium metal ships under UN 2257, a Class 4.3 Dangerous When Wet substance. It reacts violently with water and moisture in the air to release flammable hydrogen gas, so it requires airtight, moisture-excluding packaging and cannot be shipped alongside any water-based cargo.
What UN number applies to potassium nitrate?
Fertilizer-grade potassium nitrate ships under UN 1490 as a Class 5.1 Oxidizing Substance. It supports and accelerates combustion of other materials, so it requires segregation from flammables and organic materials, with packing group determined by concentration and particle size.
Is potassium nitrite different from potassium nitrate for shipping purposes?
Yes. Potassium nitrite ships separately under UN 1451, also Class 5.1 Oxidizing Substance, and a related mixture of potassium nitrate with sodium nitrite ships under UN 1487. The exact compound and mixture ratio determines which UN number and packing group applies - we confirm this from your SDS before packaging.
Does all fertilizer need a dangerous goods declaration for air freight?
No. Many common fertilizer blends are not regulated as Dangerous Goods. The concern is specific oxidizing compounds - potassium nitrate, potassium nitrite, and certain nitrate-based blends - where the concentration of oxidizing salt exceeds regulatory thresholds. We review the product formulation to confirm whether your specific fertilizer shipment is DG-regulated.
Can AÉRO-DG handle a rejected potassium or fertilizer shipment at YYZ?
Yes. If your potassium metal, potassium nitrate, or fertilizer compound shipment received a Notice of Discrepancy (NOD) from Air Canada Cargo, WestJet, or another carrier at Pearson Airport, our fast-track team verifies classification, repacks to UN specification, and re-documents it for same-day re-tender where possible.
Shipping Potassium Metal, Nitrate, or Fertilizer Compounds by Air?
Send us your details - we respond within 2 hours with next steps and a quote.