CopyCopied, CSID:8164801, http://www.chemspider.com/Chemical-Structure.8164801.html (accessed 06:31, Nov 29, 2020) Potassium oxide is an ionic compound formed by combining potassium and oxygen. The potassium has a charge of K+ and hydroxide has a charge of OH−. For example, potassium oxide is about 83% potassium by weight, while potassium chloride is only 52%. Potassium chloride provides less potassium than an equal amount of potassium oxide. Treatment of the peroxide with potassium produces the oxide:[5]. Predicting Cations and Anions . Thus, if a fertilizer is 30% potassium chloride by weight, its standard potassium rating, based on potassium oxide, would be only 18.8%. In this motif the positions of the anions and cations are reversed relative to their positions in CaF2, with potassium ions coordinated to 4 oxide ions and oxide ions coordinated to 8 potassium. Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The chemical formula K2O (or simply 'K') is used in several industrial contexts: the N-P-K numbers for fertilizers, in cement formulas, and in glassmaking formulas. From here, it is easy to spot that we require two potassium ions +1*2=+2 to balance out one oxygen atom, to make a neutral compound, K_2O. Structure, properties, spectra, suppliers and links for: Potassium oxide, 12136-45-7. CopyCopied, InChI=1S/2K.O/q2*+1;-2 K 2 O is a basic oxide and reacts with water violently to produce the caustic potassium hydroxide. Some materials of commerce, such as fertilizers and cements, are assayed assuming the percent composition that would be equivalent to the chemical compound mixture K2O. Alternatively and more conveniently, K2O is synthesized by heating potassium nitrate with metallic potassium: Other possibility is to heat potassium peroxide at 500 °C which decomposes at that temperature giving pure potassium oxide and oxygen. In this motif the positions of the anions and cations are reversed relative to their positions in CaF 2, with potassium ions coordinated to 4 oxide ions and oxide ions coordinated to 8 potassium. Potassium hydroxide cannot be further dehydrated to the oxide but it can react with molten potassium to produce it, releasing hydrogen as a byproduct. Potassium oxide (K2O) 12401-70-6. No predicted properties have been calculated for this compound. [O-2].[K+]. K 2 O crystallises in the antifluorite structure. https://en.wikipedia.org/w/index.php?title=Potassium_oxide&oldid=988950686, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Creative Commons Attribution-ShareAlike License, This page was last edited on 16 November 2020, at 05:20. No. No. Click to predict properties on the Chemicalize site, For medical information relating to Covid-19, please consult the, ACD/Labs Percepta Platform - PhysChem Module, Compounds with the same molecular formula, Search Google for structures with same skeleton. Potassium oxide is an ionic compound. Sometimes, you can predict whether an atom will form a cation or an anion based on its position on the periodic table. Properties and reactions. Halogens always form anions. Potassium oxide (K2O) is an ionic compound of potassium and oxygen. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride. Potassium monoxide. Ions are atoms or molecules which have gained or lost one or more valence electrons , giving the ion a net positive or negative charge. [6][7] K2O is a basic oxide and reacts with water violently to produce the caustic potassium hydroxide. What is Potassium Oxide? The potassium has a charge of K+ and oxygen has a charge of O2−. Structure, properties, spectra, suppliers and links for: Potassium oxide, 12136-45-7. Potassium oxide (KO) Monopotassium Monooxide Potassium is in the first group, and so will have a charge of +1, while oxygen is in the sixth or sixteenth group, and will have a charge of -2. Potassium oxide is a compound that contains two kinds of ions: Potassium cations and oxide anions. Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. CopyCopied, CHWRSCGUEQEHOH-UHFFFAOYSA-N Potassium oxide (K2O) is an ionic compound of potassium and oxygen. Alkali metals and alkaline earth metals always form cations. K2O crystallises in the antifluorite structure. Potassium oxide + water produces potassium hydroxide. A metal oxide with formula K2O. Formula of Potassium Oxide is K^2O Valency of Potassium =1 (as its atomic no. Cations and anions are both ions. is 19 that means its valence shell contains 1 e & it is easy to lossing 1e than gaining 7e).