Sodium Chlorite (NaClO2, CAS 7758-19-2, EC 231-836-6) is an oxidizing chemical used for controlled chlorine-dioxide generation, water treatment and bleaching processes. It is distinct from sodium hypochlorite, sodium chlorate and chlorine dioxide. Confirm active sodium chlorite content, impurities, physical form, dangerous-goods packaging and the intended activation process for the supplied grade. Handle strictly in accordance with the SDS.
Sodium Chlorite (NaClO2) CAS 7758-19-2
- CAS: 7758-19-2
- Synonyms: Sodium chlorite, Chlorous acid sodium salt, NaClO2, Chlorite sodium salt
- Einecs: 231-836-6
- Molecular Formula: NaClO₂
- Grade: Confirm active sodium chlorite content, moisture and impurity limits
- Package: Confirm oxidizer-compatible packaging, transport classification and destination requirements
Product Description
Product Overview
Sodium Chlorite (CAS 7758-19-2) is an inorganic chlorite oxidizer supplied in solid or aqueous grades for controlled industrial processes. It may be used to generate chlorine dioxide or in specified oxidation and bleaching systems only after concentration, process design, hazard controls and end-use authorization are confirmed.
Chemical identity alone does not establish suitability for drinking-water treatment, biocidal use, sanitation or a particular bleaching process. Confirm active sodium chlorite content, impurities, physical form, transport classification, required approvals and destination-market documentation for the offered grade.
Product Information / Specifications
| Product Name | Sodium Chlorite |
| CAS Number | 7758-19-2 |
| EINECS Number | 231-836-6 |
| Molecular Formula | NaClO₂ |
| Molecular Weight | 90.44 |
| Form | Confirm solid or solution form and the concentration basis for the offered product |
| Typical Grade | Confirm active sodium chlorite content, moisture and impurity limits |
| Product Identity | Industrial chemical / oxidizing agent |
Physical & Chemical Properties
| Appearance | Appearance depends on solid or solution form; confirm against the offered grade |
| Solubility | Soluble in water |
| Chemical Character | Strong oxidizing substance |
| Reactivity Note | May release chlorine dioxide or other hazardous gases on contact with acids or incompatible materials |
Applications
- Controlled chlorine-dioxide generation only for a validated process and an appropriately documented grade
- Process oxidation in municipal or industrial treatment operations
- Bleaching applications in sectors where chlorine dioxide chemistry is required
- Odor control and sanitation-related treatment programs using controlled oxidizing systems
- Selected industrial processing systems requiring chlorite-based oxidizing performance
Packaging
Confirm oxidizer-compatible packaging, transport classification and destination requirements
Packaging information may vary by grade, purity range, destination, and regulatory handling requirements.
Storage Conditions
- Store in a cool, dry, and well-ventilated area.
- Keep container tightly closed and protected from moisture.
- Keep away from acids, reducing agents, combustible materials, and organic substances.
- Avoid heat exposure and conditions that may promote decomposition.
- Use only compatible containers and handling systems suitable for oxidizing chemicals.
Safety Precautions
- Handle as a strong oxidizer under appropriate industrial safety procedures.
- Avoid inhalation of dust and prevent contact with eyes, skin, and clothing.
- Use suitable protective gloves, eye protection, protective clothing, and ventilation.
- Do not mix with acids, ammonia, reducing substances, or combustible materials.
- Refer to the latest SDS before storage, handling, transport, or process use.
FAQ - Technical & Supply Chain
-
Q:
Can Sodium Chlorite replace sodium hypochlorite or sodium chlorate in a treatment system?
A: No. These are distinct oxidizing chemicals with different chemistry and compatibility requirements. Sodium Chlorite should be used only in the process for which it has been specified and validated. A substitution based on oxidizer name, active-content assumptions or equal dosage is not appropriate. -
Q:
Which Sodium Chlorite batch controls should match a validated chlorine-dioxide generation process?
A: Confirm active sodium chlorite content, water, chloride, insoluble matter and the process-relevant impurity limits, together with test methods. The acceptance range should be aligned with the validated generation system and its written operating specification, rather than judged by assay alone. -
Q:
Does CAS 7758-19-2 alone confirm Sodium Chlorite suitability for drinking-water or biocidal use?
A: No. CAS confirms chemical identity, not a regulated grade or authorized end use. Confirm active content, impurities, process design, required registration or approval, documentation and destination-market rules before procurement or use.
Ordering & Documentation
Key information for document requests, quotations, and supply planning.
Documents
COA, TDS, SDS/MSDS and packing details are available on request.
Quotation
Send the CAS number, grade, quantity, packing preference and destination.
Sample & Supply
Support is available for samples, trial orders, bulk and repeat supply.
Storage & Shipping
Product-specific conditions are confirmed before order.





