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Sodium chlorite

CAS Number
7758-19-2
EC Number
231-836-6
Chemical Formula
ClHO2.Na
Molecular Weight
90.44 g/mol

Description

Sodium chlorite (CAS 7758-19-2 ) is an inorganic oxidizing salt used industrially as a precursor to chlorine dioxide generation and as a direct bleaching and antimicrobial agent. It delivers controlled oxidative action across multiple processing environments where conventional chlorine-based treatments are unsuitable or regulated for specific industrial applications. In water treatment, it is activated with acid or chlorine to generate chlorine dioxide on-site for disinfection of municipal and industrial water systems and cooling towers. Textile and pulp processors use it to bleach fibers and paper stock without the fiber degradation associated with hypochlorite-based systems, ensuring high material integrity. In food processing environments, approved dilute solutions are used for surface sanitation of equipment and antimicrobial treatment of fresh produce and poultry processing lines. Leather processing operations apply it during hide preparation to achieve uniform whitening and to control microbial load during critical wet processing stages in the tannery. The product is supplied as a stabilized aqueous solution, most commonly at 25% and 31% concentrations, and as a dry technical-grade solid for various industrial requirements. Food-grade and water treatment grades are available and must meet applicable regulatory standards for the intended application to ensure safety and compliance in the supply chain. Contact us for supply of Sodium chlorite Request Quote

Other Names (Synonyms)

NaO2Cl | NaClO2 | chlorous acid, sodium salt | chlorite sodium | Textone | Alcide LD | Neo Silox D | G538EBV4VF

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point190 °C (dec.)
Boiling Point≥100°C/1013hPa
Density2.5 g/cm³
Appearancewhite flakes
ColorWhite
Odorodorless
FormPowder
Water Solubility39 g/100 mL (17 ºC)
Vapor Pressure0Pa at 25℃
pH12-13 (20°C in H2O)
Log P-2.7 at 25℃

Safety & Handling

Danger
GHS03· OxidizerGHS05· CorrosiveGHS06· ToxicGHS08· Health HazardGHS09· EnvironmentGHS07· Irritant

Hazard Statements

H271May cause fire or explosion; strong Oxidizer
H272May intensify fire; oxidizer
H301Toxic if swallowed
H310Fatal in contact with skin
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H318Causes serious eye damage
H319Causes serious eye irritation
H330Fatal if inhaled
H341Suspected of causing genetic defects
H371May cause damage to organs
H373May causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P220Keep away from clothing and other combustible materials.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P262Do not get in eyes, on skin, or on clothing.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P283Wear fire-resistant/flame-retardant clothing.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P363Wash contaminated clothing before reuse.
P391Collect spillage.
P405Store locked up.
P420Store away from other materials.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P316Get emergency medical help immediately.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P360IF ON CLOTHING: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off immediately all contaminated clothing and wash it before reuse.
P364Take off contaminated clothing and wash it before reuse.
P378Use … for extinction.
P233Store in a well-ventilated place. Keep container tightly closed.
P331Rinse mouth. Do NOT induce vomiting.
P354IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P375Evacuate area.

Trade & Regulatory

HS Code28289000
UN Number2813
ADR Class4.3
Packing GroupIII
Storage Class5.1A - Strongly oxidizing hazardous materials
WGK (Germany)2