Name | Sodium cyanate |
Synonyms | zassol weecon Sodium cyanate SodiumCyanatePure Sodium isocyanate CYANIC ACID SODIUM SALT Sodiumcyanatewhitepowder SODIUM CYANATE TECHNICAL sodium (oxomethylidene)azanide Sodium cyanate (Technical Grade) |
CAS | 917-61-3 |
EINECS | 213-030-6 |
InChI | InChI=1/CNO.Na/c2-1-3;/q-1;+1 |
Molecular Formula | CNNaO |
Molar Mass | 65.01 |
Density | 1,937 g/cm3 |
Melting Point | 550 °C |
Water Solubility | 110 g/L (20 ºC) |
Solubility | Water (Slightly) |
Vapor Presure | 6750mmHg at 25°C |
Appearance | White crystal |
Color | White to light yellow or light beige |
Merck | 14,8604 |
BRN | 3594963 |
Storage Condition | Inert atmosphere,Room Temperature |
Stability | Stable. Incompatible with acids, strong oxidizing agents. |
Sensitive | Easily absorbing moisture |
MDL | MFCD00011121 |
Physical and Chemical Properties | Character white or gray-white crystalline powder. melting point 550 ℃ relative density 1.937 solubility: it is easily soluble in water, slightly soluble in liquid chlorine, benzene, ethanol, ether and other organic solvents. |
Use | Used as a raw material for organic synthesis, for pharmaceuticals, herbicides and heat treatment of steel |
Hazard Symbols | Xn - Harmful |
Risk Codes | R22 - Harmful if swallowed R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S24/25 - Avoid contact with skin and eyes. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
WGK Germany | 1 |
RTECS | GS7000000 |
TSCA | Yes |
HS Code | 28380000 |
Toxicity | LD50 i.p. in mice: 260 mg/kg (Cerami) |
white or off-white crystalline powder. The relative density was 1. 937. Melting Point 550 °c. Soluble in water, slightly soluble in liquid chlorine and benzene, ethanol, ether and other organic solvents. In the dry state is extremely stable, heated to more than 500 deg C before the start of decomposition, but in hot water is easy to hydrolysis, the formation of urea, sodium carbonate and ammonium carbonate, and acid when the formation of isocyanate. Decomposition to sodium cyanide, sodium carbonate, carbon dioxide and nitrogen was carried out in the presence of nickel and iron catalysts in a vacuum at 700 °c. It is less toxic to human, breeding and fish.
packed in woven bags or iron barrels lined with polyethylene plastic bags, each with a net weight of 25kg. Belonging to inorganic drugs. Risk code: 83001. This product is easy to be damp, should be stored in a cool, ventilated, dry warehouse, should be Isolation with acid to avoid reaction. When handling
Wear face masks and gloves. In case of fire, it can be suppressed by sand. Toxicity and protection: This product is less toxic to people, livestock and fish, and does not produce typical cyanide toxicity. Chronic poisoning for the destruction of oxidative phosphorylation, with hemoglobin content and the phenomenon of the increase in the number of red blood cells. Protection Measure see potassium cyanide.
urea method: the urea and sodium carbonate according to urea; Sodium carbonate -2. The ratio of 47:1(mol ratio) was added to the crushing mixer, stirred and mixed for 5-10min, and then put into the storage tank. The mixture was added to a pre-heated reddish cast iron cylindrical reactor with stirring,
External Coke blast furnace direct fire heating, so that the reaction to generate sodium cyanate. The ammonia and carbon dioxide produced by the reaction are evacuated by a water absorption tower, and the reactants are stirred at 550~600 ℃ for 15min to melt all the reactants, which are immediately poured into an iron pan and rapidly cooled, pieces of 8-10mm flakes were cured and pulverized to obtain a finished product.
packed in woven bags or iron barrels lined with polyethylene plastic bags, each with a net weight of 25kg. Belonging to inorganic drugs. Risk code: 83001. This product is easy to be damp, should be stored in a cool, ventilated, dry warehouse, should be Isolation with acid to avoid reaction. Wear work clothes, masks and gloves when handling. In case of fire, it can be suppressed by sand. Toxicity and protection: This product is less toxic to people, livestock and fish, and does not produce typical cyanide toxicity. Chronic poisoning for the destruction of oxidative phosphorylation, with hemoglobin content and the phenomenon of the increase in the number of red blood cells. Protection Measure see potassium cyanide.
LogP | 0.3 at 20℃ |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
toxicity | This product is less toxic to human, livestock and fish, and does not produce typical cyanide toxicity. Chronic poisoning for the destruction of oxidative phosphorylation, with hemoglobin content and the phenomenon of the increase in the number of red blood cells. Protection Measure see potassium cyanide. |
Use | used as raw materials for organic synthesis, pharmaceutical raw materials and herbicides, also used in the heat treatment of steel, etc. sodium cyanate as an inorganic chemical raw materials, used in organic synthesis, pharmaceutical industry, P-chlorophenyl urea, an intermediate for the synthesis of the insecticide chlorophenyl urea, can be used as a pesticide. It is used as a raw material for Organic Synthesis (methyl propamide), a pharmaceutical raw material, a herbicide and the like. It is also used for the heat treatment of steel. It is used in organic synthesis, heat treatment of iron and steel, and as a pharmaceutical intermediate. used as raw materials for organic synthesis, pharmaceutical raw materials and herbicides, also used in the heat treatment of iron and steel used as raw materials for organic synthesis, used in medicine, herbicides and steel heat treatment of sodium cyanate as an inorganic chemical raw materials, it is used in organic synthesis, pharmaceutical industry, heat treatment of iron and steel, etc., and can be used in the synthesis of pesticide. It is used as a raw material for Organic Synthesis (methyl propyl ester), a pharmaceutical raw material and a herbicide. It is also used for the heat treatment of steel. Used in organic synthesis, heat treatment of iron and steel, used as pharmaceutical intermediates. It is mainly used as a starting material for the production of methyl amino propylene Ester in organic synthesis. The metallurgical industry is used as a heat treatment agent for steel. Pesticides are industrially used as herbicides. In addition, it is also a raw material for the pharmaceutical industry. for organic synthesis, etc. |
production method | is prepared by heating and melting urea together with sodium carbonate. urea method the urea and sodium carbonate according to the ratio of urea: sodium carbonate = 2.47:1(mol ratio), into the crushing mixer, after 5~10 min stirring and mixing, put in a storage tank. The mixture was added to a slightly red cast iron cylindrical reactor with stirring, and heated by direct heating in a Coke blast furnace for external use to produce sodium cyanate. The ammonia and carbon dioxide produced by the reaction are evacuated by a water absorption tower, and the reactants are stirred at 550~600 ℃ for 15 min to melt all the reactants, which are immediately poured into an iron pan and rapidly cooled, pieces of 8-10mm flakes were cured and then pulverized to obtain a finished product. Its 2(NH2)2CO Na2CO3 → 2NaOCN 2nh3-h2o CO2 Its preparation method is to synthesize sodium cyanate by urea method. Reaction equation: 2(NH2)2CO Na2CO2 → 2NaOCN 2NH3 ↑ H2O CO2 ↑ urea and sodium carbonate were added into the pulverizing mixer at a ratio of 2.47: 1(mol), stirred and mixed for 10min, then, the mixture was added into a slightly red cast iron cylindrical reactor with stirring, and heated by direct fire in a Coke blast furnace for external use to generate sodium cyanate. Ammonia and CO2 are evacuated by a water absorption tower, and the reactants are stirred at 550~600 ℃ for 15min to melt all the reactants. They are immediately poured into an iron plate and rapidly cooled to solidify into 8~10mm Flake blocks, the product was prepared by crushing. |
category | pesticide |
toxicity grade | highly toxic |
Acute toxicity | intraperitoneal-mouse LD50: 260 mg/kg; Oral-mouse LDL0: 4 mg/kg |
flammability hazard characteristics | non-combustible; Decomposition of highly toxic and flammable gases in case of acid; toxic cyanide and sodium oxide fumes from heat |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from acids and food additives |
fire extinguishing agent | sand and foam |