7775-09-9 Usage
Description
Sodium chlorate (chemical formula: NaClO3) is an inorganic compound that appears as a white crystalline powder. It is noncombustible but can accelerate the burning of surrounding combustible materials, especially when it dries out. Sodium chlorate is soluble in water and alcohol, and it has an annual yield of several hundred million tons worldwide. It is used in various industries and applications due to its unique properties.
Uses
1. Pulp and Paper Industry:
Sodium chlorate is used to prepare chlorine dioxide, which is utilized for bleaching wood pulp. This process helps in the production of environmentally friendly and high-quality white paper products.
2. Perchlorate Compounds Production:
Sodium chlorate is used in the industrial manufacture of other perchlorate compounds through electrolysis.
3. Herbicide:
Sodium chlorate can be used as a non-selective herbicide to control various types of plants, such as morning glory, Canada thistle, Johnson grass, and bamboo. It is also used as a defoliant and desiccant.
4. Emergency Oxygen Generation:
Sodium chlorate is used for the generation of chemical oxygen, which is crucial for emergency oxygen generation in commercial aircraft.
5. Inks, Cosmetics, Paper, and Leather Industry:
Sodium chlorate is also useful for making inks, cosmetics, paper, and leather.
6. Dyes, Explosives, and Matches Manufacturing:
Sodium chlorate is used in the manufacture of dyes, explosives, and matches due to its oxidizing properties.
7. Soil Sterilization:
Sodium chlorate is a nonselective soil sterilant used on noncrop land or in combination with triazines, ureas, or other organic herbicides for soil sterilization. It has foliar contact activity and leaches, making it effective for weed control.
References
https://pubchem.ncbi.nlm.nih.gov/compound/sodium_chlorate#section=Top
https://en.wikipedia.org/wiki/Sodium_chlorate
Air & Water Reactions
Soluble in water.
Reactivity Profile
SODIUM CHLORATE decomposes upon heating forming O2; reacts with strong acids forming toxic and explosive ClO2; reacts with many substances [Handling Chemicals Safely 1980 p. 833]; metal chlorates are oxidants in the presence of strong acid; liberates explosive chlorine dioxide gas; heating a moist metal chlorate and a dibasic organic acid liberates chlorine dioxide and carbon dioxide; mixtures of perchlorates with sulfur or phosphorus are explosives [Bretherick 1979 p. 100]; mixtures of the chlorate with ammonium salts(ammonium thiosulfate), powdered metals, silicon, sulfur, or sulfides are readily ignited and potentially explosive [Bretherick 1979 p. 806]. A combination of finely divided aluminum with finely divided bromates(also chlorates and iodates) of barium, calcium, magnesium, potassium, sodium or zinc can explode by heat, percussion, and friction [Mellor 2:310 1946-47]. Sodium chlorate and arsenic trioxide form a spontaneously flammable mixture [Ellern 1968 p. 51]. Mixtures of organic material and more than 10% sodium chlorate are sufficiently combustible to be hazardous at low relative humidity. Mixtures of organic material such as charcoal, sugar, flour, or shellac and sodium chlorate may be ignited by friction or shock [Chem. Safety Data Sheet SD-42 1951].
Hazard
Dangerous fire risk, strong oxidant, contact
with organic materials may cause fire.
Health Hazard
Contact causes irritation of eyes and skin. INGESTION: May cause nausea, vomiting, diarrhea, abdominal or gastric pain, dyspnea and other symptoms. The major cause of death from a lethal dose is acute renal failure.
Flammability and Explosibility
Notclassified
Trade name
ASEX?; ATLACIDE[C]; ATRATOL B-HERBATOX?[C]; BAREGROUND?; BEST MAGCHLOR DEFOLIANT?; CHAPMAN WEED FREE?; CHLORAX?; D-LEAF COTTON DEFOLIANT?; DE-FOL-ATE?; DESOLET?; DREXEL DEFOL?; DROP LEAF?; EVAU-SUPERFALL?; FALL?; GRAIN SORGHUM HARVEST AID?; GRANEX OK?; HARVEST-AID?; KLOREX?; KM SODIUM CHLORATE?; KUSA-TOHRUKUSATOL?; LOREX?; ORTHO C-1 DEFOLIANT & WEED KILLER?; OXYCIL?; RASIKAL?; SHED-A-LEAF?; TRAVEX?; TUMBLEAF?; 20 MULE TEAM HIBOR?[C]; UNITED CHEMICAL DEFOLIANT NO.1?; VAL-DROP?
Safety Profile
Human poison by unspecified routes. Moderately toxic experimentally by ingestion and intraperitoneal routes. Human systemic effects by ingestion: blood hemolysis with or without anemia, methemoglobinemiacarboxyhemoglobinemia and pulmonary changes. Mutation data reported. A skin, mucous membrane, and eye irritant. Damages the red blood cells of humans when ingested. A powerful oxidizer. It can explode on contact with flame or sparks (static discharge) and has caused many industrial explosions. May react explosively with agricultural materials (e.g., peat, powdered sulfur, sawdust, urotropine, thiuram), alkenes + potassium osmate, aluminum + rubber, ammonium salts, grease, leather, powdered metals, nonmetals, sulfides, cyanides, cyanoborane oligomer, nitrobenzene, organic matter, paint + polyethylene, phosphorus, sodium phosphinate. Violent reaction or ignition with aluminum, ammonium sulfate, Sb2S3, arsenic, arsenic trioxide, 1,3bis(trichloromethy1benzene) + heat, carbon, charcoal, MnOr, phosphorus, potassium cyanide, osmium + heat, paper, sulfuric acid, thiocyanates, triethylene glycol + wood, wood, zinc. Can also react violently with nitrobenzene, paper, metal sulfides, dibasic organic acids, organic matter. When heated to decomposition it emits toxic fumes of Cland Na2O. See also CHLORATES.
Potential Exposure
Sodium chlorate is used to manufacture dyes, explosives, in paper pulp processing and as a weed killer; used as a constituent of atratol and pramitol.
Shipping
UN1495 Sodium chlorate, Hazard Class: 5.1; Labels: 5.1-Oxidizer. UN2428 Sodium chlorate, aqueous solution, Hazard Class: 5.1; Labels: 5.1-Oxidizer.
Purification Methods
It is crystallised from hot water (0.5mL/g). It is a strong oxidising agent, and should be kept clear from organic matter.
Incompatibilities
A strong oxidizer. Potentially explosive. Reacts violently with combustibles, sulfuric acid; and reducing materials. Reacts with strong acids giving off carbon dioxide. Explosions may be caused by contact with ammonia salts; ammonium thiosulfate; antimony sulfide; arsenic, carbon, charcoal, organic matter; organic acids; thiocyanates, chemically active metals; oils, metal sulfides; nitrobenzene, powdered metals; sugar. Reacts with some organic contaminants forming shock-sensitive mixtures. Decomposes on heating above 300C or on burning, producing oxygen and toxic chlorine fumes. Attacks zinc, magnesium, and steel.
Check Digit Verification of cas no
The CAS Registry Mumber 7775-09-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,7 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7775-09:
(6*7)+(5*7)+(4*7)+(3*5)+(2*0)+(1*9)=129
129 % 10 = 9
So 7775-09-9 is a valid CAS Registry Number.
InChI:InChI=1/ClHO3.Na/c2-1(3)4;/h(H,2,3,4);/q;+1/p-1
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