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Potassium oxide

Potassium oxide Suppliers list
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512
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Products Intro: Product Name:Potassium oxide (K2O)
CAS:12136-45-7
Purity:99% Package:25KG;5KG;1KG
Company Name: Hubei Jusheng Technology Co.,Ltd.
Tel: 18871490254
Email: linda@hubeijusheng.com
Products Intro: Product Name:Potassium monoxide
CAS:12136-45-7
Purity:99% Package:5KG;1KG
Company Name: Hubei xin bonus chemical co. LTD
Tel: 86-13657291602
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Products Intro: Product Name:Potassium monoxide
CAS:12136-45-7
Company Name: Shaanxi Didu New Materials Co. Ltd
Tel: +86-89586680 +86-13289823923
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Products Intro: Product Name:Formalin;potassium oxide
CAS:12136-45-7
Purity:0.99 Package:25KG,200L
Company Name: Chizhou Kailong Import and Export Trade Co., Ltd.  
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Products Intro: Product Name:PotassiuM oxide (K2O)
CAS:12136-45-7
Purity:99.2% Min Package:10g/bag,or as your request

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Potassium oxide Basic information
Product Name:Potassium oxide
Synonyms:Potassium oxide (K2O);Kaliumoxid;Oxybispotassium;POTASSIUM OXIDE;Potassium monoxide;dipotassium oxide
CAS:12136-45-7
MF:K2O
MW:94.196
EINECS:235-227-6
Product Categories:Inorganics
Mol File:12136-45-7.mol
Potassium oxide Structure
Potassium oxide Chemical Properties
Melting point decomposes at 350℃ [HAW93]
Boiling point 691.46℃[at 101 325 Pa]
density 2.350
vapor pressure 0Pa at 25℃
solubility soluble in H2O, ethanol, ethyl ether
form gray cubic crystals
color gray cubic crystals, crystalline
Water Solubility soluble H2O, forming KOH; soluble alcohol and ether [HAW93]
LogP-5.08 at 25℃
CAS DataBase Reference12136-45-7
EPA Substance Registry SystemPotassium oxide (12136-45-7)
Safety Information
RIDADR 2033
HazardClass 8
PackingGroup II
MSDS Information
Potassium oxide Usage And Synthesis
Chemical Propertiesgray crystal(s) mass; hygroscopic [CRC10] [HAW93]
UsesPotassium oxide is a strong alkaline flux which is similar to sodium oxide but is slightly less strong and it begins its fluxing action earlier than does sodium oxide, at approximately 1382°F (750°C). It's a predictable, stable flux that produces bright glossy glazes, but it can't be used alone as a flux. Potassium produces slightly stronger glaze surfaces than does sodium oxide. Its low viscosity and surface tension create fluid glaze melts, but its high coefficient of expansion and contraction may cause crazing.
As mentioned above, potassium oxide is often found combined with sodium oxide, so it's often written as KNaO. lt's only slightly volatile at ceramic temperatures and is just slightly soluble.Usually used in its insoluble forms as feldspars or slightly soluble frits, potassium oxide can also be introduced to the glaze recipe as soluble pearl ash (potassium carbonate), which can cause some flashing like sodium carbonate.
Insoluble sources of potassium oxide are potash feldspars such as Custer, G-200, K-200, A-3, Kona F-4(Del Monte), Cornwall stone, Plastic Vitrox, volcanic ash, Kona A-1, Bell, Eureka, A-300, and mica. All soda feldspars have some potassium oxide; frits P-25, 3110, and 3124 contain minor amounts. Soluble forms of potassium oxide include pearl ash(K2CO3), potassium nitrate (saltpeter), and unwashed wood ash.
Definitionpotassium monoxide: A grey crystallinesolid, K2O; cubic; r.d. 2.32; decompositionoccurs at 350°C. It maybe prepared by the oxidation ofpotassium metal with potassium nitrate.It reacts with ethanol to formpotassium ethoxide (KOC2H5), andwith liquid ammonia to form potassiumhydroxide and potassamide(KNH2).
DefinitionAn ionic solid that is white when cold and yellow when hot. It is prepared by heating potassium with potassium nitrate. Potassium monoxide dissolves violently in water to form potassium hydroxide solution. The hydrate K2O.3H2O is known. Potassium monoxide dissolves in liquid ammonia with the formation of potassium hydroxide and potassamide (KNH2).
DefinitionChEBI: A metal oxide with formula K2O.
General DescriptionA white-colored crystalline solid. Denser than water. Contact may severely irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. Used to make other chemicals.
Air & Water ReactionsSoluble in water. The oxides of potassium react with water vigorously and with enough evolution of heat to cause boiling and spattering of hot caustic solution, [Chemical Safety Data Sheets SD-9, SD-10. 1947]. Reacts with warm water with violent explosion [Thorpe and Tlitton J. Chem. Soc. 59:1019: 1891].
Reactivity ProfileThe higher oxides of potassium, formed in air, react explosively with pure potassium, sodium, sodium-potassium alloys, and organic matter [Mellor 2, Supp. 3:1559. 1963].
Health HazardTOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire HazardNon-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Some are oxidizers and may ignite combustibles (wood, paper, oil, clothing, etc.). Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated.
Flammability and ExplosibilityNon flammable
Potassium oxide Preparation Products And Raw materials
Preparation Productszeolite,L-type
Tag:Potassium oxide(12136-45-7) Related Product Information
Sodium oxide Magnesium oxide Phosphorus pentoxide Potassium sulfate Ferrous chloride Potassium bicarbonate Silicon monoxide Zinc hydroxide ALLYL VINYL ETHER POTASSIUM STANNATE TRIHYDRATE POTASSIUM DEUTEROXIDE Potassium hydroxide solution Potassium hydroxide Potassium borate Potassium superoxide