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The structure of sodium oxide has been determined by X-ray crystallography.Most alkali metal oxides M 2 O (M = Li, Na, K, Rb) crystallise in the antifluorite structure.In this motif the positions of the anions and cations are reversed relative to their positions in CaF 2, with sodium ions tetrahedrally coordinated to 4 oxide ions and oxide cubically coordinated to 8 sodium ions.
Sodium atoms have 11 electrons, one more than the stable configuration of the noble gas neon. As a result, sodium usually forms ionic compounds involving the Na + cation. [1] Sodium is a reactive alkali metal and is much more stable in ionic compounds. It can also form intermetallic compounds and organosodium compounds.
Sodium superoxide is the inorganic compound with the formula Na O 2. [1] This yellow-orange solid is a salt of the superoxide anion. It is an intermediate in the oxidation of sodium by oxygen.
Plumbates are formed by the reaction of lead(IV) oxide, PbO 2, with alkali. [4] [5] Plumbate salts contain either the hydrated hexahydroxoplumbate(IV) or plumbate anion [Pb(OH) 6] 2−, or the anhydrous anions PbO 2− 3 (metaplumbate) or PbO 4− 4 (orthoplumbate). [4]
Sodium methoxide is prepared by treating methanol with sodium: 2 Na + 2 CH 3 OH → 2 CH 3 ONa + H 2. The reaction is so exothermic that ignition is possible. The resulting solution, which is colorless, is often used as a source of sodium methoxide, but the pure material can be isolated by evaporation followed by heating to remove residual methanol.
Sodium cobalt oxide, also called sodium cobaltate, is any of a range of compounds of sodium, cobalt, and oxygen with the general formula Na x CoO 2 for 0 < x ≤ 1. The name is also used for hydrated forms of those compounds, Na x CoO 2 ·y H 2 O. The anhydrous compound was first synthesized in the 1970s. [2]
Sodium metaborate is a chemical compound of sodium, boron, and oxygen with formula NaBO 2. [3] However, the metaborate ion is trimeric in the anhydrous solid, therefore a more correct formula is Na 3 B 3 O 6 or (Na +) 3 [B 3 O 6] 3−. The formula can be written also as Na 2 O·B 2 O 3 to highlight the relation to the main oxides of sodium and ...
An oxide (/ ˈ ɒ k s aɪ d /) is a chemical compound containing at least one oxygen atom and one other element [1] in its chemical formula. "Oxide" itself is the dianion (anion bearing a net charge of –2) of oxygen, an O 2– ion with oxygen in the oxidation state of −2. Most of the Earth's crust consists of oxides. Even materials ...