Search results
Results From The WOW.Com Content Network
Potassium oxide ( K 2 O) is an ionic compound of potassium and oxygen. It is a base. This pale yellow solid is the simplest oxide of potassium. It is a highly reactive compound that is rarely encountered. Some industrial materials, such as fertilizers and cements, are assayed assuming the percent composition that would be equivalent to K 2 O.
Potassium peroxide is an inorganic compound with the molecular formula K 2 O 2. It is formed as potassium reacts with oxygen in the air, along with potassium oxide (K 2 O) and potassium superoxide (KO 2 ). Crystal structure. Potassium peroxide reacts with water to form potassium hydroxide and oxygen : 2 K2O2 + 2 H2O → 4 KOH + O2 ↑.
Potassium superoxide is an inorganic compound with the formula K O 2. [ 6] It is a yellow paramagnetic solid that decomposes in moist air. It is a rare example of a stable salt of the superoxide anion. It is used as a CO2 scrubber, H2O dehumidifier, and O2 generator in rebreathers, spacecraft, submarines, and spacesuits .
Potassium hydroxide is an inorganic compound with the formula K OH, and is commonly called caustic potash . Along with sodium hydroxide (NaOH), KOH is a prototypical strong base. It has many industrial and niche applications, most of which utilize its caustic nature and its reactivity toward acids.
In horticulture, potassium silicate is used as a soluble source of potassium and silica. It makes the growing medium more alkaline. It is also used as a supplement (in conjunction with normal fertilizer) for the numerous benefits that increasing the availability of silicon compounds has. Silicon-containing compounds are valuable to a plant, and ...
In chemistry and thermodynamics, the standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy during the formation of 1 mole of the substance from its constituent elements in their reference state, with all substances in their standard states. The standard pressure value p⦵ = 105 Pa (= 100 kPa = 1 ...
A petrogenetic grid is a geological phase diagram that connects the stability ranges or metastability ranges of metamorphic minerals or mineral assemblages to the conditions of metamorphism. Experimentally determined mineral or mineral-assemblage stability ranges are plotted as metamorphic reaction boundaries in a pressure–temperature ...
Potassium bicarbonate has widespread use in crops, especially for neutralizing acidic soil. [11]Potassium bicarbonate is an effective fungicide against powdery mildew and apple scab, allowed for use in organic farming.