POTASSIUM SULFIDE[K2S]

·         CAS Number 39365-88-3

·         Linear Formula (l*K₂S)(m*K₂S_x)(n*K₂S₂O₃)

Potassium sulfide is the inorganic compound with the formula K₂S. The colourless solid is rarely encountered, because it reacts readily with water, a reaction that affords potassium hydrosulfide (KSH) and potassium hydroxide (KOH).

Detailed description

Most commonly, the term potassium sulfide refers loosely to this mixture, not the anhydrous solid.

Structure

It adopts "antifluorite structure," which means that the small K⁺ ions occupy the tetrahedral (F⁻) sites in fluorite, and the larger S²⁻centers occupy the eight-coordinate sites. Li₂S, Na₂S, and Rb₂S crystallize similarly.

Use in fireworks

Potassium sulfides are formed when black powder is burned and are important intermediates in many pyrotechnic effects, such as senko hanabi and some glitter formulations.

PRICE

$361.06/KG OR $164.11/IB

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