Potassium Nitrate For Fertilizer 7757-79-1

1. Product Identification

Product Name: Potassium NitrateChemical Formula: KNO₃CAS Number: 7757-79-1EINECS Number: 231-818-8Synonyms: Saltpeter, Nitric acid potassium salt

2. Physical Properties

Appearance: White crystalline powder or colorless crystalsMolecular Weight: 101.10 g/molMelting Point: 334°C (633°F)Boiling Point: Decomposes at 400°CDensity: 2.11 g/cm³Solubility in Water: Highly soluble, 316 g/L at 20°C

3. Chemical Properties

pH: Neutral to slightly alkaline in aqueous solutionStability: Stable under normal conditionsReactivity: Strong oxidizer; reacts violently with reducing agents and combustible materialsDecomposition Products: Releases toxic fumes of nitrogen oxides upon heating

4. Applications

Fertilizers: Provides essential potassium and nitrogen nutrients for plant growthFood Industry: Used as a food preservative (E252) in cured meatsPyrotechnics: Key ingredient in fireworks and explosivesGlass and Ceramics: Improves hardness and durability