Potassium trithiocarbonate

Potassium trithiocarbonate
Identifiers
CAS Number	26750-66-3;
3D model (JSmol)	Interactive image;
ECHA InfoCard	100.008.667
EC Number	247-959-3;
PubChem CID	117858;
	InChI InChI=1S/CH2O2S.2K/c2-1(3)4;;/h4H,(H,2,3);;/q;2*+1/p-2 Key: JOKZZQQDSRIMNE-UHFFFAOYSA-L;
	SMILES C(=O)([O-])[S-].[K+].[K+];
Properties
Chemical formula	CK2S3
Molar mass	186.39 g·mol−1
Appearance	solid
	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 formula K₂CS₃. It consists of two potassium cations and the planar trithiocarbonate dianion. 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. Potassium trithiocarbonate reacts with alkylating agents to give trithiocarbonate esters:[1]

K₂CS₃ + 2 RX → (RS)₂CS + 2 KX (X = halide)

References

R. E. Strube (1959). "Trithiocarbodiglycolic Acid". Organic Syntheses. 39: 77. doi:10.15227/orgsyn.039.0077.

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[1] R. E. Strube (1959). "Trithiocarbodiglycolic Acid". Organic Syntheses. 39: 77. doi:10.15227/orgsyn.039.0077.