Potassium cyanate

Potassium cyanate Basic information
Product Name:Potassium cyanate
Synonyms:aerocyanate;aerocyanateweedkiller;alicyanate;millerp.c.weedkiller;p.c.80crabgrasskiller;potassiumcyanate(kcno);potassiumcyanate(kocn);potassiumisocyanate
CAS:590-28-3
MF:CKNO
MW:81.12
EINECS:209-676-3
Product Categories:Materials Science;Metal and Ceramic Science;Inorganics;InorganicsAlphabetic;Herbicides;Potassium Salts;P;Pesticides&Metabolites;PON - PT;Metal and Ceramic Science;Potassium Salts;Salts
Mol File:590-28-3.mol
Potassium cyanate Structure
Potassium cyanate Chemical Properties
Melting point 315 °C
density 2.056 g/mL at 25 °C (lit.)
vapor pressure 0Pa at 25℃
storage temp. Store below +30°C.
solubility 750g/l
form Crystalline Powder and Chunks
color White
Specific Gravity2.056
PH10 (50g/l, H2O, 20℃)
Water Solubility 750 g/L (20 ºC)
Merck 14,7625
BRN 3594798
Boiling point 700-900°C (1000 hPa) Not applicable,(decomposition)
Exposure limitsNIOSH: IDLH 25 mg/m3
Stability:Stable. Incompatible with acids.
LogP0.3 at 20℃
CAS DataBase Reference590-28-3(CAS DataBase Reference)
EPA Substance Registry SystemPotassium cyanate (590-28-3)
Safety Information
Hazard Codes Xn
Risk Statements 22-36
Safety Statements 24/25-26
WGK Germany 1
RTECS GS6825000
TSCA Yes
HS Code 2842 90 80
Hazardous Substances Data590-28-3(Hazardous Substances Data)
ToxicityLD50 i.p. in mice: 320 mg/kg (Cerami)
MSDS Information
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Potassium cyanate English
SigmaAldrich English
ACROS English
ALFA English
Potassium cyanate Usage And Synthesis
Chemical PropertiesPotassium cyanate, KOCN,is colorless,water soluble crystals. Used as an herbicide and for the manufacture of drugs and organic chemicals,
Chemical PropertiesPotassium cyanate, KCNO, white solid, soluble, formed along with lead metal by reaction of potassium cyanide and lead monoxide solids upon heating. Source of cyanate.
UsesPotassium cyanate is used as an inhibitor to prevent sickling of erythrocytes and has potential use as a treatment for sickle-cell anemia. Potassium cyanate is also used as a reagent to carbamylate proteins.
UsesHerbicide, manufacture of organic chemicals and drugs, treatment of sickle-cell anemia.
UsesPotassium cyanate is used as chemical intermediate and as a weed killer. It is also used for the heat treatment of metals.
DefinitionChEBI: Potassium cyanate is a cyanate salt and a one-carbon compound. It has a role as a herbicide.
General DescriptionPotassium cyanate can be prepared by reacting urea with alkali hydroxide or carbonates at high temperatures.
Flammability and ExplosibilityNotclassified
Safety ProfilePoison by intraperitoneal route. Moderately toxic by ingestion. Causes irritation of the gastrointestinal tract. An herbicide. It is said to be slowly metabolized in the body to cyanide but does not have high toxicity of cyanides. When heated to decomposition it emits very toxic fumes of CNand K2O.
Purification MethodsCommon impurities include ammonia and bicarbonate ion (from hydrolysis). Purify it by preparing a saturated aqueous solution at 50o, neutralising with acetic acid, filtering, adding two volumes of EtOH and keeping for 3-4hours in an ice bath. (More EtOH can lead to co-precipitation of KHCO3.) Filter, wash it with EtOH and dry it rapidly in a vacuum desiccator (P2O5). The process is repeated [Vanderzee & Meyers J Chem Soc 65 153 1961].
Potassium methoxide POTASSIUM CYANATE SOLUTION 100UG/ML IN H2O 1ML cyanic acid POTASSIUM SELENOCYANATE Potassium thiosulfate Potassium iodide Potassium sorbate POTASSIUM CYANATE, [14C] POTASSIUM CYANATE [367.1.7] Potassium cyanate Potassium persulfate Potassium Citrate Potassium Acetate Potassium thiocyanate Potassium chloride Potassium POTASSIUM CYANIDE cyanic acid

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