Potassium ethyl xanthate

Potassium ethyl xanthate
Ball-and-stick model of the component ions of potassium ethyl xanthate
Names
Preferred IUPAC name
Potassium O-ethylcarbonodithioate
Other names
  • Potassium ethylxanthogenate
  • Potassium ethylxanthate
  • Potassium-O-ethyl dithiocarbonate
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
ECHA InfoCard 100.004.946 Edit this at Wikidata
EC Number
  • 205-439-3
UNII
  • InChI=1S/C3H6OS2.K/c1-2-4-3(5)6;/h2H2,1H3,(H,5,6);/q;+1/p-1 checkY
    Key: JCBJVAJGLKENNC-UHFFFAOYSA-M checkY
  • InChI=1S/C3H6OS2.K/c1-2-4-3(5)6;/h2H2,1H3,(H,5,6);/q;+1/p-1
  • [K+].[S-]C(=S)OCC
Properties
CH3CH2OCS2K
Molar mass 160.29 g·mol−1
Appearance Pale yellow powder
Density 1.263 g/cm3[1]
Melting point 225 to 226 °C (437 to 439 °F; 498 to 499 K)
Boiling point decomposes
Acidity (pKa) approximately 1.6
Hazards
GHS labelling:
GHS02: FlammableGHS07: Exclamation mark
Warning
H228, H302, H315, H319, H332, H335
P210, P240, P241, P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
Related compounds
Other cations
 Sodium ethyl xanthate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium ethyl xanthate (KEX) is an organosulfur compound with the chemical formula CH3CH2OCS2K. It is a pale yellow powder that is used in the mining industry for the separation of ores. It is a potassium salt of ethyl xanthic acid.

  1. ^ Report 5 (1995) p. 5