12136-45-7 Usage
Uses
Used in Ceramic Industry:
Potassium monoxide is used as a strong alkaline flux in the ceramic industry for its predictable and stable properties. It helps produce bright glossy glazes but cannot be used alone as a flux. Potassium monoxide is often combined with sodium oxide, written as KNaO, and is used in its insoluble forms as feldspars or slightly soluble frits. It contributes to slightly stronger glaze surfaces than sodium oxide due to its low viscosity and surface tension, creating fluid glaze melts. However, its high coefficient of expansion and contraction may cause crazing.
Used in Chemical Production:
Potassium monoxide is used in the production of other chemicals, such as potassium hydroxide and potassamide. It is a key component in various chemical processes and reactions, making it an essential compound in the chemical industry.
Used in Glaze Recipe:
Potassium monoxide can be introduced to the glaze recipe as soluble pearl ash (potassium carbonate), which can cause some flashing like sodium carbonate. This soluble form of potassium monoxide is used to enhance the properties of the glaze and improve the overall quality of the ceramic product.
Air & Water Reactions
Soluble 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 Profile
The 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 Hazard
TOXIC; 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 Hazard
Non-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 Explosibility
Nonflammable
Check Digit Verification of cas no
The CAS Registry Mumber 12136-45-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,1,3 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12136-45:
(7*1)+(6*2)+(5*1)+(4*3)+(3*6)+(2*4)+(1*5)=67
67 % 10 = 7
So 12136-45-7 is a valid CAS Registry Number.
InChI:InChI=1/2K.H2O/h;;1H2/q2*+1;/p-1
