Description

Sodium Chlorite is a powerful and versatile inorganic compound with the chemical formula NaClO₂. As a highly effective oxidizing agent, it is a critical intermediate and active component in numerous industrial bleaching, disinfection, and chemical synthesis processes. Key industries that rely on this compound include water treatment, pulp & paper manufacturing, textile processing, and specialty chemical production. Its controlled reactivity makes it indispensable for applications requiring a selective and efficient oxidant.

Application

• Water Treatment & Disinfection: Primary use for generating chlorine dioxide on-site, a powerful biocide for municipal drinking water, industrial cooling towers, and food processing wash water.
• Pulp & Paper Bleaching: Used in ECF (Elemental Chlorine Free) bleaching sequences to produce high-brightness pulp while minimizing environmental impact.
• Textile & Fabric Bleaching: Employed for bleaching natural and synthetic fibers due to its effectiveness at lower temperatures compared to hypochlorite.
• Chemical Synthesis: Serves as a key oxidizing agent in the manufacture of various organic and inorganic chemicals, including chlorates and other specialty oxidants.
• Food Processing & Sanitation: Approved for use in sanitizing food contact surfaces, equipment, and certain food products (under strict regulatory controls).
• Oil & Gas Industry: Applied in well stimulation and as a biocide in fracturing fluids and water flooding operations.
• Municipal & Industrial Odor Control: Effective in scrubbing systems to neutralize hydrogen sulfide and other malodorous compounds.
• Electronics Manufacturing: Used in specific etching and cleaning formulations for semiconductor and circuit board production.

Basic Information

Product Name	Sodium Chlorite
CAS No.	7758-19-2
Molecular Formula	NaClO₂
Molecular Weight	90.44 g/mol
Synonyms	Chlorous Acid, Sodium Salt; Textone; Chlorite, Sodium; Sodium Chlorite (NaClO₂); Chlorine Dioxide Precursor; Caswell No. 753; CCRIS 391; NSC 77388; UN 1496 (for solutions); UN 1908 (for solid, >39% available chlorine)
EINECS	231-836-6

Quality Control

Our Sodium Chlorite is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, stability, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, impurity profiles, and physical properties are provided with every shipment. We can supply grades tailored to meet various industry standards, including technical, food-grade, and high-purity 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) nature and properties as a strong oxidizer, it must be kept separate from acids, reducing agents, organic materials, and combustible substances. Recommended storage temperature is 15-25°C (59-77°F).

Specification

Item	Specification
Appearance	White or slightly yellow crystalline powder / solution
Identification (IR)	Conforms
Assay (as NaClO₂)	≥ 80.0% (Solid), 25-31% (Liquid, typical)
pH (1% Solution)	10.0 - 12.0
Chlorate (as NaClO₃)	≤ 3.0%
Chloride (as NaCl)	≤ 17.0%
Sulfate (as SO₄)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Insolubles	≤ 0.1%
Moisture	Contact for details

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