Names | |
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IUPAC name
sodium O-ethylcarbonodithioate
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Other names
Sodium ethylxanthogenate
Sodium-O-ethyl dithiocarbonate SEX | |
Identifiers | |
3D model (JSmol)
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Abbreviations | SEX |
ChemSpider | |
ECHA InfoCard | 100.004.947 |
EC Number |
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PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
C3H5NaOS2 | |
Molar mass | 144.18 g·mol−1 |
Appearance | Pale yellow powder[1] |
Density | 1.263 g/cm3[1] |
Melting point | 182 to 256 °C (360 to 493 °F; 455 to 529 K)[1] |
Boiling point | decomposes |
450 g/L (10 °C)[1] | |
Acidity (pKa) | 1.6[1] |
Basicity (pKb) | 12.4[1] |
Hazards | |
GHS labelling: | |
Danger | |
H228, H302, H311, H314, H315, H319, H332, H335 | |
P210, P240, P241, P260, P261, P264, P270, P271, P280, P301+P312, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P370+P378, P403+P233, P405, P501 | |
250 °C (482 °F; 523 K)[2] | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sodium ethyl xanthate (SEX)[3] is an organosulfur compound with the chemical formula CH3CH2OCS2Na. It is a pale yellow powder, which is usually obtained as the dihydrate. Sodium ethyl xanthate is used in the mining industry as a flotation agent.[4] A closely related potassium ethyl xanthate (KEX) is obtained as the anhydrous salt.