Description

Sodium Nitrate CAS NO 7631-99-4 is an inorganic salt and a powerful oxidizing agent with the chemical formula NaNO₃. It is a critical industrial chemical valued for its role as a source of nitrate ions in numerous manufacturing and chemical synthesis processes. This versatile compound is essential for industries including agriculture, where it serves as a fertilizer component, and pyrotechnics, glass manufacturing, and metallurgy.

Application

• Fertilizer and Agricultural Inputs: A key source of readily available nitrogen for plant nutrition in compound fertilizers and nutrient solutions.
• Pyrotechnics and Explosives: Acts as an oxidizer in the formulation of fireworks, smoke bombs, and certain types of industrial explosives.
• Glass and Ceramics Manufacturing: Used as a fining agent to remove small bubbles from molten glass and in the production of specialty enamels.
• Metallurgical Processes: Employed in heat treatment salts for aluminum and steel, and as a component in metal cleaning and pickling solutions.
• Chemical Synthesis: Serves as a raw material for producing other nitrate compounds, including potassium nitrate, and in certain organic nitration reactions.
• Food Preservation (Food Grade): As a regulated food additive (E251), it is used as a preservative and color fixative in cured meats and some cheeses.
• Heat Transfer and Storage Medium: Utilized in concentrated solar power plants and other applications within molten salt mixtures for thermal energy storage.
• Wastewater Treatment: Can be used as a nitrogen source in the biological treatment of industrial wastewater.

Basic Information

Product Name	Sodium Nitrate
CAS No.	7631-99-4
Molecular Formula	NaNO₃
Molecular Weight	84.99 g/mol
Synonyms	Chile saltpeter; Cubic niter; Nitric acid, sodium salt; Peru saltpeter; Soda niter; Sodium(I) nitrate; Nitrate of soda
EINECS	231-554-3

Quality Control

Our Sodium Nitrate is produced under stringent quality management systems. We offer various grades, including Technical, Food (FCC), and high-purity grades, each meeting specific industry standards. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical specifications to ensure compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from heat, sparks, and open flame. Due to its hygroscopic and strong oxidizing nature, keep the container tightly sealed to prevent moisture absorption and store separately from combustible materials, reducing agents, and strong acids. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	White crystalline solid
Identification (IR)	Conforms
Assay (as NaNO₃)	≥ 99.0%
pH (5% solution)	5.5 - 8.5
Chloride (as Cl)	≤ 0.01%
Sulfate (as SO₄)	≤ 0.01%
Heavy Metals (as Pb)	≤ 10 ppm
Moisture (Loss on Drying)	≤ 0.5%
Water Insolubles	≤ 0.01%

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