Description

Sodium Nitrite is an essential industrial inorganic salt with the chemical formula NaNO₂. It serves as a versatile intermediate and functional additive, prized for its strong oxidizing and corrosion-inhibiting properties. This compound is critical for manufacturers in the metal treatment, pharmaceutical, and food preservation industries, where precise quality and reliable supply are paramount.

Application

• Metal Finishing & Corrosion Inhibition: A key component in alkaline passivation solutions and closed-loop cooling water treatments to prevent rust and pitting in ferrous metals.
• Diazotization & Chemical Synthesis: Serves as a primary reagent for generating diazonium salts, which are crucial intermediates in the production of azo dyes, pigments, and certain pharmaceuticals.
• Food Preservation (Curing Agent): Used under strict regulatory limits (e.g., FCC compliance) in cured meat products like bacon and ham to inhibit bacterial growth (specifically *Clostridium botulinum*) and develop characteristic color and flavor.
• Rubber & Polymer Industry: Acts as a blowing agent in the production of foam rubber and as a polymerization inhibitor and accelerator in specific synthetic processes.
• Pharmaceutical Intermediate: Employed in the synthesis of vasodilators and other active pharmaceutical ingredients (APIs).
• Wastewater Treatment: Used in controlled doses to prevent odor and corrosion in municipal and industrial wastewater systems.
• Laboratory Reagent: Utilized in analytical chemistry for testing and as a standard in various titrimetric methods.

Basic Information

Product Name	Sodium Nitrite
CAS No.	7632-00-0
Molecular Formula	NaNO₂
Molecular Weight	68.9953 g/mol
Synonyms	Nitrous Acid Sodium Salt; Diazotizing Salt; Erinitrit; Anti-Rust; Filmerine; Sodium Nitrite, Technical; Sodium Nitrite, Food Grade; Sodium Nitrite, Reagent Grade
EINECS	231-555-9

Quality Control

Our Sodium Nitrite is manufactured under a stringent quality management system. We offer various grades, including Technical, Food (FCC), and Reagent grades, each produced to meet specific industry standards. Every batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, impurity profiles, and physical parameters to ensure 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 and incompatible materials. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent caking and degradation. Store separately from strong acids, reducing agents, and combustible materials.

Specification

Item	Specification
Appearance	White to slightly yellow crystalline powder or granules
Identification (IR)	Conforms
Assay (NaNO₂)	≥ 97.0% - 99.0% (Grade Dependent)
Moisture	≤ 1.0%
Chloride (as Cl)	≤ 0.10%
Sulfate (as SO₄)	≤ 0.10%
Heavy Metals (as Pb)	≤ 10 ppm
Insoluble Matter	≤ 0.05%

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