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Potassium trithiocarbonate

Chemical compound From Wikipedia, the free encyclopedia

Potassium trithiocarbonate
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Potassium trithiocarbonate is the inorganic compound with the chemical formula K2CS3. It is the potassium salt of trithiocarbonic acid. It consists of two potassium cations K+ and the trigonal planar trithiocarbonate dianion CS2−3. It is a white solid, although impure samples often appear brown. It is prepared by the reaction of potassium sulfide or potassium hydrosulfide with carbon disulfide.

K2S + CS2 → K2CS3
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Potassium trithiocarbonate reacts with alkylating agents to give trithiocarbonate esters:[1]

K2CS3 + 2 RX → (RS)2CS + 2 KX (X = halogen, R = monovalent organyl group)
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