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Powdered potassium sulfide anhydrous. Potassium sulfide is an inorganic compound with the formula K 2 S. The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH). Most commonly, the term potassium sulfide refers loosely to this mixture ...
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The salt is prepared by the addition of elemental sulfur to potassium sulfide. An idealized equation is shown for potassium hydrosulfide: 4 KSH + S 8 → 2 K 2 S 5 + 2 H 2 S. The structure consists of zigzag chains of S 2− 5 paired with K + ions. [2]
[1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
A plastic ball-and-stick model of proline. In chemistry, the ball-and-stick model is a molecular model of a chemical substance which displays both the three-dimensional position of the atoms and the bonds between them. [1]
Potassium hydrosulfide is an inorganic compound with the formula KSH. This colourless salt consists of the cation K + and the bisulfide anion [SH] −. It is the product of the half-neutralization of hydrogen sulfide with potassium hydroxide. The compound is used in the synthesis of some organosulfur compounds. [1]
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Ga 2 S 3 dissolves in aqueous solutions of potassium sulfide, K 2 S to form K 8 Ga 4 S 10 containing the (Ga 4 S 10) 8− anion which has an adamantane, molecular P 4 O 10 structure. [ 5 ] Ternary sulfides M I GaS 2 , M II Ga 2 S 4 and M III GaS 3 respectively have been of interest due to their unusual electrical properties and some of these ...