Product Description

1. Product Identification

• Product Name: Potassium Nitrate
• Chemical Formula: KNO₃
• CAS Number: 7757-79-1
• EINECS Number: 231-818-8
• Synonyms: Saltpeter, Nitric acid potassium salt

2. Physical Properties

• Appearance: White crystalline powder or colorless crystals
• Molecular Weight: 101.10 g/mol
• Melting Point: 334°C (633°F)
• Boiling Point: Decomposes at 400°C
• Density: 2.11 g/cm³
• Solubility in Water: Highly soluble, 316 g/L at 20°C

3. Chemical Properties

• pH: Neutral to slightly alkaline in aqueous solution
• Stability: Stable under normal conditions
• Reactivity: Strong oxidizer; reacts violently with reducing agents and combustible materials
• Decomposition Products: Releases toxic fumes of nitrogen oxides upon heating

4. Applications

• Fertilizers: Provides essential potassium and nitrogen nutrients for plant growth
• Food Industry: Used as a food preservative (E252) in cured meats
• Pyrotechnics: Key ingredient in fireworks and explosives
• Glass and Ceramics: Improves hardness and durability

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