Sodium chlorite

Molecule structure of Sodium Chlorite (CAS NO.7758-19-2):

IUPAC Name: Sodium chlorite 
Molecular Weight: 90.44157 g/mol
Molecular Formula: ClNaO₂ 
Melting Point: 190 °C (dec.)
Water Solubility: 39 g/100 mL (17 °C)
Sensitive: hygroscopic
H-Bond Acceptor: 2
Exact Mass: 89.948452
MonoIsotopic Mass: 89.948452
Topological Polar Surface Area: 40.1
Heavy Atom Count: 4
Complexity: 13.5
Canonical SMILES: [O-]Cl=O.[Na+]
InChI: InChI=1S/ClHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1
InChIKey: UKLNMMHNWFDKNT-UHFFFAOYSA-M
EINECS: 231-836-6
Product Categories: Water Ttreatment Chemicals;Inorganic Salts; Synthetic Reagents; Analytical Reagents for General Use; Puriss p.a.; Q-S, Puriss p.a.; Essential Chemicals; Routine Reagents; Technical Grade

 Sodium Chlorite is used for disinfection of a few municipal water treatment plants after conversion to chlorine dioxide. In organic synthesis, Sodium Chlorite is frequently used for the oxidation of aldehydes to carboxylic acids. Recently, Sodium Chlorite has been used as an oxidizing agent to convert alkyl furans to the corresponding 4-oxo-2-alkenoic acids in a simple one pot synthesis.

 Sodium chlorite is derived indirectly from sodium chlorate, NaClO₃. First, the explosively unstable gas chlorine dioxide, ClO₂ is produced by reducing sodium chlorate in a strong acid solution with a suitable reducing agent (for example, sodium chloride, sulfur dioxide, or hydrochloric acid). The chlorine dioxide is then absorbed into an alkaline solution and reduced with hydrogen peroxide, H₂O₂ yielding sodium chlorite.
 Sodium chlorite is also manufactured from chlorine dioxide, sodium hydroxide, and calcium hydroxide.
       4NaOH + Ca(OH)₂ + C + 4ClO₂ → 4NaClO₂ + CaCO₃ + 3H₂O
 After filtering oil, the calcium carbonate, the solution of sodium chlorite(NaClO₂) is evaporated and drum－dried.

Hazard Codes: O, Xn, T+, T
Risk Statements: 8-22-24-32-34-9-26-25-14-36/37/38-21
R8 :Contact with combustible material may cause fire. 
R22:Harmful if swallowed. 
R24:Toxic in contact with skin. 
R32:Contact with acid liberates very toxic gas. 
R34:Causes burns. 
R9:Explosive when mixed with combustible material. 
R26:Very toxic by inhalation. 
R25 :Toxic if swallowed. 
R14 :Reacts violently with water. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R21:Harmful in contact with skin.
Safety Statements: 17-26-36/37/39-45-50A-38-36 
S17:Keep away from combustible material. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S50:Do not mix with ... 
S38:In case of insufficient ventilation, wear suitable respiratory equipment. 
S36:Wear suitable protective clothing.
RIDADR: UN 2813 4.3/PG 3
WGK Germany: 2
RTECS: VZ4800000
HazardClass: 5.1
PackingGroup: II
Hazardous Substances Data: 7758-19-2(Hazardous Substances Data)

 Sodium Chlorite (CAS NO.7758-19-2) is also named as Alcide LD ; CCRIS 1426 ; Caswell No. 755 ; Chlorite sodium ; Chlorous acid, sodium salt ; EPA Pesticide Chemical Code 020502 ; HSDB 733 ; Neo Silox D ; Textile ; Textone ; UNII-G538EBV4VF . Sodium Chlorite (CAS NO.7758-19-2) is white flakes. It is soluble in water. It is corrosive to skin and/or metals. Sodium Chlorite is an oxidizing agent. Can react with acids to form spontaneously explosive chlorine dioxide gas (ClO₂). Reacts with ammonia to produce ammonium chlorite, which is shock-sensitive. Finely divided metallic or organic substances in dry mixture with chlorites are highly flammable and may be ignited on friction. A mixture of organic matter and solid sodium chlorite can be extremely sensitive to heat, impact, or friction. Sodium chlorite reacts very violently with organic materials containing divalent sulfur or with free sulfur (may ignite). Inhalation, ingestion or skin contact with Sodium Chlorite may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution. Substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.