Potassium Nitrate
Saltpeter, Indian Saltpeter
- CAS
- 7757-79-1
- EC
- 231-818-8
- Sectors
- Food & Nutrition, Agriculture
Potassium Nitrate (CAS 7757-79-1), also known as saltpeter, is a white crystalline salt that is highly soluble in water and slightly hygroscopic, and it is used in fertilizers, pyrotechnic mixtures, glass and ceramics, and as a food preservative and curing salt. It decomposes upon heating to release oxygen, leaving potassium nitrite as a residue.
Potassium Nitrate
Applications
Used extensively in fertilizers, fireworks, and pyrotechnic mixtures as a strong oxidizer. In glass and ceramics, it enhances clarity and mechanical strength. In the food industry, it acts as a preservative and curing salt. Laboratory applications include use as an oxidizing reagent and heat source in pyrotechnic compositions.
Safety & Risks
Classified as an oxidizer; may intensify combustion. Avoid mixing with organic materials or strong acids. Use protective gloves and goggles during handling.
Packaging
Delivered in 25 kg plastic-lined woven bags or 1,000 kg big bags. Store in a cool, dry, and ventilated environment, separated from flammables and reducing agents.