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Potassium cyanate

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Potassium cyanate Basic information

Product Name:
Potassium cyanate
CAS:
590-28-3
MF:
CKNO
MW:
81.12
EINECS:
209-676-3
Mol File:
590-28-3.mol
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Potassium cyanate Chemical Properties

Melting point:
315 °C
Density 
2.056 g/mL at 25 °C(lit.)
storage temp. 
Store below +30°C.
solubility 
750g/l
form 
Crystalline Powder and Chunks
color 
White
Specific Gravity
2.056
PH
10 (50g/l, H2O, 20℃)
Water Solubility 
750 g/L (20 ºC)
Merck 
14,7625
Boiling point:
700-900°C (1000 hPa) Not applicable,(decomposition)
BRN 
3594798
Stability:
Stable. Incompatible with acids.
CAS DataBase Reference
590-28-3(CAS DataBase Reference)
EPA Substance Registry System
Potassium cyanate (590-28-3)
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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 Data
590-28-3(Hazardous Substances Data)
Toxicity
LD50 i.p. in mice: 320 mg/kg (Cerami)

MSDS

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Potassium cyanate Usage And Synthesis

Chemical Properties

Potassium cyanate, KOCN,is colorless,water soluble crystals. Used as an herbicide and for the manufacture of drugs and organic chemicals,

Chemical Properties

Potassium cyanate, KCNO, white solid, soluble, formed along with lead metal by reaction of potassium cyanide and lead monoxide solids upon heating. Source of cyanate.

Uses

Potassium cyanate is used as chemical intermediate and as a weed killer. It is also used for the heat treatment of metals.

Uses

Herbicide, manufacture of organic chemicals and drugs, treatment of sickle-cell anemia.

Safety Profile

Poison 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 Methods

Common 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 cyanate Preparation Products And Raw materials

Preparation Products

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Shanghai Dingfen Chemical Technology Co., Ltd. Gold
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