Name | SODIUM CHLORITE |
Synonyms | UN1496 textile Textone Textile HSDB 733 Alcide LD CCRIS 1426 Neo Silox D SODIUM CHLORITE UNII-G538EBV4VF Chlorite sodium Scentrex? DTS 1.05 sachet Sodium Chlorite, Anhydrous Chlorous acid, sodium salt Sodium chlorite, Unstabilized EPA Pesticide Chemical Code 020502 Sodium chlorite [UN1496] [Oxidizer] |
CAS | 7758-19-2 |
EINECS | 231-836-6 |
InChI | InChI=1/ClHO2.Na/c2-1-3;/h(H,2,3);/q;+1/p-1 |
Molecular Formula | ClNaO2 |
Molar Mass | 90.44 |
Density | 2.5 g/cm3 |
Melting Point | 190°C (dec.) |
Water Solubility | 39 g/100 mL (17 ºC) |
Vapor Presure | 0Pa at 25℃ |
Appearance | Powder |
Color | White |
Merck | 14,8600 |
Stability | Stable. Incompatible with phosphorus, sulphur, zinc, ammonia, finely powdered metals, strong reducing agents, acids, organic materials. |
Sensitive | Hygroscopic |
Explosive Limit | 7% |
Physical and Chemical Properties | Character white crystal or crystalline powder. Slightly hygroscopic. soluble in water. |
Use | Used as bleaching agent, decolorizing agent, cleaning agent, extraction agent |
Risk Codes | R8 - Contact with combustible material may cause fire R22 - Harmful if swallowed R24 - Toxic in contact with skin R32 - Contact with acids 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 R50 - Very Toxic to aquatic organisms |
Safety Description | 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.) S50A - S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
UN IDs | UN 2813 4.3/PG 3 |
WGK Germany | 2 |
RTECS | VZ4800000 |
TSCA | Yes |
HS Code | 28289000 |
Hazard Class | 5.1 |
Packing Group | II |
Raw Materials | sulfur dioxide Hydrogen peroxide Hydrogen peroxide Sulfuric acid Sulfuric acid Sodium Chlorate Sodium Chlorate Sodium hydroxide |
Downstream Products | Chloride Dioxide |
White Crystal or crystalline powder. Slightly hygroscopic. Soluble in water (5 C for 34% J 30 C for 46%). Anhydrous heating to 350t is not decomposed, the general product because of containing water, heated to 180~200 deg C decomposition. The alkaline aqueous solution is stable to light, and the acidic aqueous solution is affected by light to produce explosive decomposition and release chlorine dioxide. Strong oxidant, its oxidation ability is 4~5 times of bleaching powder, is 2~3 times of bleaching powder. Contact with combustibles and mixing of organic matter can cause an explosion.
sodium chlorate is dissolved in water to form a solution, and a chlorine dioxide generator is added. A mixture of sulfur dioxide and air and sulfuric acid are respectively added to the chlorine dioxide generator to react, and the generated chlorine dioxide gas is then reacted with hydrogen peroxide, liquid caustic soda is reacted to produce a solution containing sodium chlorite. The solution was purified by adding an arsenic scavenger and a heavy metal scavenger to the resulting solution. After cooling crystallization, filtration, drying, prepared solid sodium chlorite product.
used as a bleaching agent in the food industry. Mainly used for sugar-stained products. The aqueous solution of sodium chlorite has stable bleaching ability under acidic conditions. Citric acid can be added to adjust the pH value to 3~5 before bleaching. Corrosion resistant containers should be used when bleaching, and metal containers should not be used. Japanese regulations limit the use of cherry, Bee bucket, grape and peach. FDA(& sect;186, 1750) regulation is limited to food contact with the paper, the limit of 2000~125 mg/kg.
rat oral LD50:166mg/kg. Woodchucks can cause death for several hours in air containing 45mg/kg chlorine dioxide. It has a stimulating effect on the mucous membrane of respiratory organs and eyes. Should be stored in a cool, ventilated, dry warehouse, but not in the wood structure of the warehouse. Cannot be stored and mixed with flammable products, acids and reducing agents. Pay attention to moisture. Stay away from heat sources and fire types. During transport to prevent rain and sun. When loading and unloading, it should be handled with care to prevent violent collision. Fire, can use water, sand, all kinds of fire extinguishing.