Potassium nitrate is a versatile product with various applications, including fertilizers and personal care products. As an effective oxidizer, it can also accelerate the combustion of combustible materials and is therefore considered mildly hazardous. DutchChems sells potassium nitrate in limited quantities, ranging from 1 kg to 5 kg per order, and the packaging carries an ADR LQ label. Buying potassium nitrate is legal, but the buyer's intentions are recorded. DutchChems, based in the Netherlands, ships to all EU countries and works with DPD to ensure low shipping costs.