Potassium Nitrate

chemical listing Chemical Listing

Plater Group is a leading UK supplier of Potassium Nitrate, producing and offering the product in 25, 200, 220, 1000 Litre, 25kg bag, bulk bags and bulk loads.

We are also a Potassium Nitrate distributor, covering the UK, Ireland and Europe.

Potassium nitrate is a chemical compound with the chemical formula KNO3. It is an ionic salt of potassium ions K+ and nitrate ions NO3 and is therefore an alkali metal nitrate. It occurs in nature as the mineral ‘nitre’. It is a source of nitrogen from which it derives its name. Potassium nitrate is one of several nitrogen-containing compounds collectively and historically referred to as saltpeter and is a key ingredient in gunpowder.

Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks.  In processed meats, potassium nitrate reacts with haemoglobin and generates a pink colour. Potassium Nitrate (KNO3) is obtained through a reaction of NaNOand Potassium Chloride (KCl), or as a co-product of metal catalysts. It is an important input in the production of crystal enamel for covering ceramic or metallic surfaces and metal treatments.

It is also used in the following:

  • anti-freeze products
  • in explosives, as an oxidizer, producing a lilac coloured flame upon burning
  • hydraulic fluids
  • washing & cleaning products
  • cosmetics and personal care products
  • metal surface treatment products
  • as pH regulators in water treatment
  • heat transfer fluids
  • food preservation to cure and preserve meats
  • the pharmaceutical industry

  • Horticulture - Fertilizers

    Plater Group Potassium Nitrate is a high standard quality potassium nitrate source providing the much needed nitrogen and potassium to plants at all growth stages, in hydroponics as well as soil grown crops. Our product is free of chlorine, sodium and heavy metals

    Potassium Nitrate is a free flowing, fine crystalline powder which dissolves quickly in water and can be used in all fertigation systems, such as drip irrigation, NFT, sprinklers, centre pivots and lateral movement irrigation systems.

    NPK Fertilizer

    Compound NPKs and NPK blends are types of multi-nutrient fertilizers containing some percentage of all three of the major nutrients, nitrogen (N), phosphorous (P) and potassium (K). These products are intended to allow for complete fertilization of a crop with a single application.

    Our NPK fertilizer is treated to make it stronger and more attrition resistant. 

    If you would like a quote or require more information about how Plater Group can supply you with Potassium Nitrate please complete the form below and a member of our team will get back to you shortly or phone us on +44 (0)1283 792600.

    Available Options:


    Drum Drum IBC IBC Bag Bag Bulk Bag Bulk Bag Bulk Bulk





    1000L IBC

    25KG BAGS




    Technical Grade

    BP Grade

    Food Grade