Description

Potassium Nitrate CAS NO 7757-79-1 is an inorganic salt and a powerful oxidizing agent with the chemical formula KNO₃. It is a critical industrial chemical valued for its role in providing oxygen in various chemical reactions and processes. This versatile compound is essential for manufacturers in the agriculture, food processing, pyrotechnics, and glass production industries.

Application

• Fertilizer Production: A primary source of highly soluble potassium and nitrogen for specialty fertilizers, particularly for chloride-sensitive crops.
• Pyrotechnics and Propellants: A key oxidizer in black powder, fireworks, matches, and certain solid rocket propellants.
• Food Preservation: Used as a preservative (E252) in cured meats, such as salami and ham, to inhibit bacterial growth and stabilize color.
• Glass and Ceramics Manufacturing: Acts as a fluxing agent to lower the melting temperature and improve the clarity and durability of optical glass and fine ceramics.
• Heat Treatment Salts: A component of salt baths for the quenching and tempering of metals, providing a uniform and controlled heating medium.
• Toothpaste for Sensitive Teeth: Used in dental care products to help reduce nerve sensitivity by blocking pain signals.
• Laboratory Reagent: Employed in analytical chemistry and as a standard in various chemical syntheses.

Basic Information

Product Name	Potassium Nitrate
CAS No.	7757-79-1
Molecular Formula	KNO₃
Molecular Weight	101.10 g/mol
Synonyms	Saltpeter; Nitre; Niter; Nitric Acid Potassium Salt; Vicknite; Potassium(I) Nitrate; E252
EINECS	231-818-8

Quality Control

Our Potassium Nitrate is produced under a stringent quality management system. We offer various grades, including Technical, Food (FCC), and Reagent grades, each meeting specific industry standards. Every batch is tested for critical parameters such as assay, chloride content, and heavy metals. Certificates of Analysis (COA) are provided to ensure full traceability and compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Due to its hygroscopic (moisture-sensitive) and strong oxidizing nature, keep containers tightly sealed to prevent caking and store separately from combustible materials, reducing agents, and acids.

Specification

Item	Specification
Appearance	White crystalline powder or granules
Identification (IR)	Conforms
Assay (KNO₃)	≥ 99.0%
pH (5% solution)	5.0 - 8.0
Loss on Drying	≤ 0.5%
Chloride (Cl)	≤ 0.01%
Sulfate (SO₄)	≤ 0.01%
Heavy Metals (as Pb)	≤ 10 ppm
Water Insolubles	≤ 0.01%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.