Essential details
MOQ:28MT
Lead time:10 working days
Shipping:Ocean freight
Product Introduction
Product Introduction
Sodium Nitrite is a versatile inorganic compound widely utilized as a high-performance corrosion inhibitor in metal treatment, an efficient diazotization agent in dye and pigment synthesis, and a regulated preservative in the food industry. Available in industrial and food-grade formulations, it offers high purity, reliable consistency, and compliance with international standards such as GB, FCC, and ISO. Suitable for applications in metallurgy, chemicals, food processing, and water treatment, it is supplied in secure 25 kg bags with full technical documentation and global export support.
Parameters
Item | Specification |
Product Name | Sodium Nitrite |
Chemical Formula | NaNO₂ |
CAS No. | 7632-00-0 |
Appearance | White to light yellow crystalline powder |
Purity (NaNO₂) | ≥ 98.5% |
Moisture | ≤ 2.0% |
Sodium Nitrate (NaNO₃) | ≤ 1.5% |
Chloride (Cl⁻) | ≤ 0.10% |
Water Insoluble | ≤ 0.05% |
pH (10% solution) | 9.0 – 10.5 |
Packing | 25 kg bag / 50 kg bag, 1000 kg jumbo bag |
Application | Dyeing, metallurgy, chemical synthesis, corrosion inhibitor |
Application
NaNO₂ functions as a passivating agent in metal surface treatment, forming a protective oxide layer on steel and copper alloys to inhibit corrosion.
Sodium Nitrite acts as a key diazotization reagent in dye manufacturing, enabling the synthesis of azo dyes and pigments through reaction with aromatic amines.
Food-grade NaNO₂ serves as a preservative and color fixative in cured meats (e.g., bacon, sausages), preventing bacterial growth and maintaining product color.
Industrial Sodium Nitrite operates as a rubber vulcanization accelerator and blowing agent intermediate, enhancing processing efficiency and material properties.
NaNO₂ solution is utilized as a corrosion inhibitor in closed-loop cooling water systems, protecting pipes and equipment from oxidative damage.