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Potassium oxide is produced from the reaction of oxygen and potassium; this reaction affords potassium peroxide, K 2 O 2. Treatment of the peroxide with potassium produces the oxide: [5] K 2 O 2 + 2 K → 2 K 2 O. Alternatively and more conveniently, K 2 O is synthesized by heating potassium nitrate with metallic potassium: 2 KNO 3 + 10 K → 6 ...
Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. [9] Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.
The oxidation states are also maintained in articles of the elements (of course), and systematically in the table {{Infobox element/symbol-to-oxidation-state}} See also [ edit ]
Name (symbol) Z Description (symbol etymology, former names) Hydrogen (H) 1 ὕδωρ (root: ὑδρ-) + γενής (hydor genes) Greek via Latin and French "water + begetter" descriptive From French hydrogène [2] and Latin hydro-and -genes, derived from the Greek ὕδωρ γείνομαι (hydor geinomai), meaning "Ι beget water". Helium (He) 2
The positive ion retains its element name whereas for a single non-metal anion the ending is changed to -ide. Example: sodium chloride, potassium oxide, or calcium carbonate. When the metal has more than one possible ionic charge or oxidation number the name becomes ambiguous. In these cases the oxidation number (the same as the charge) of the ...
Chemical formula Synonyms CAS number KAlF 4: potassium tetrafluoroaluminate: 14484–69–6 KAlO 2: potassium aluminate: 12003–63–3 KBF 4: potassium fluoroborate: 14075–53–7 KBr: potassium bromide: 7758–02–3 KBrO 3: potassium bromate: 7758–01–2 KCHF 3 O 3 S: potassium trifluoromethanesulfonate: 2926–27–4 KCHO 2: potassium ...
Common name Chemical name (Formula) Potash fertilizer: Up to the early 20th century:potassium carbonate (K 2 CO 3). Beginning from the late 19th century: one or more of potassium chloride (KCl), potassium sulfate (K 2 SO 4) or potassium nitrate (KNO 3).
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 CO 2 scrubber, H 2 O dehumidifier, and O 2 generator in rebreathers, spacecraft, submarines, and spacesuits.