Potassium trithiocarbonate

Potassium trithiocarbonate
Identifiers
3D model (JSmol)
ECHA InfoCard 100.008.667
EC Number
  • 247-959-3
  • InChI=1S/CH2O2S.2K/c2-1(3)4;;/h4H,(H,2,3);;/q;2*+1/p-2
    Key: JOKZZQQDSRIMNE-UHFFFAOYSA-L
  • C(=O)([O-])[S-].[K+].[K+]
Properties
K2CS3
Molar mass 186.39 g·mol−1
Appearance White solid, often brown due to impurities
Related compounds
Related compounds
 Trithiocarbonic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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

Potassium trithiocarbonate reacts with alkylating agents to give trithiocarbonate esters:

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