ChemicalBook > CAS DataBase List > Potassium ethylxanthate

Potassium ethylxanthate

Product Name: Potassium ethylxanthate
CAS No.: 140-89-6
Chemical Name: Potassium ethylxanthate
Synonyms: POTASSIUM ETHYL XANTHATE;potassium O-ethyl carbonodithioate;POTASSIUM ETHYL XANTHOGENATE;POTASSIUM XANTHATE;POTASSIUM O-ETHYL DITHIOCARBONATE;KEX;POTASSIUM XANTHOGENATE;Potassium O-ethyl xanthate;potassium (ethoxymethanethioyl)sulfanide;z3
CBNumber: CB0723237
Molecular Formula: C3H5KOS2
Formula Weight: 160.3
MOL File: 140-89-6.mol

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Potassium ethylxanthate Property

Melting point:: 209-214 °C
Boiling point:: 462.37℃[at 101 325 Pa]
bulk density: 400-600kg/m3
Density: 1,558 g/cm³
vapor pressure: 0Pa at 25℃
Flash point:: 96°C
storage temp.: Store below +30°C.
solubility: alcohol: soluble(lit.)
form: Crystalline Powder
color: Yellow
PH: 9-10 (100g/l, H2O, 20℃)
Water Solubility: Soluble in water.
Merck: 14,7696
BRN: 3596974
Stability:: Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.
InChIKey: JCBJVAJGLKENNC-UHFFFAOYSA-M
LogP: -2.24 at 25℃
CAS DataBase Reference: 140-89-6(CAS DataBase Reference)
EPA Substance Registry System: Potassium ethyl xanthate (140-89-6)

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Safety

Hazard Codes: Xn,Xi,F
Risk Statements: 36/37/38-22-20/22-11
Safety Statements: 37/39-26-37-36-45-36/37-16
RIDADR: 3342
WGK Germany: 3
RTECS: FG1575000
TSCA: Yes
HazardClass: 4.2
PackingGroup: II
HS Code: 29309090
Toxicity: LD50 orally in Rabbit: 1700 mg/kg

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H228Flammable solid

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P240Ground/bond container and receiving equipment.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 8.20744
Product name: Potassium-O-ethyldithiocarbonate
Purity: for synthesis
Packaging: 100g
Price: $91.9
Updated: 2025/07/31

Sigma-Aldrich

Product number: R533475
Product name: DITHIOCARBONIC ACID O-ETHYL ESTER, POTASSIUM SALT DIMER
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $113
Updated: 2025/07/31

Sigma-Aldrich

Product number: 254770
Product name: Potassium ethyl xanthogenate
Purity: 96%
Packaging: 5g
Price: $77
Updated: 2025/07/31

Sigma-Aldrich

Product number: 8.20744
Product name: Potassium-O-ethyldithiocarbonate
Purity: for synthesis
Packaging: 500g
Price: $395
Updated: 2025/07/31

Sigma-Aldrich

Product number: 254770
Product name: Potassium ethyl xanthogenate
Purity: 96%
Packaging: 100g
Price: $111
Updated: 2025/07/31

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Potassium ethylxanthate Chemical Properties,Usage,Production

Chemical Properties

Light Green Solid

Uses

Potassium ethyl xanthate is used as a reagent for extraction of metal ions into organic solvents and in the preparation of 2-mercapto benzimidazoles and 2-mercapto benzoxazoles by reacting with o-phenylenediamines and o-amino phenols respectively. It acts as a precursor in the production of unsymmetrical sulfides through cross-coupling reaction and as a floatation agent in the mining industry. It is involved in the determination of cadmium in water samples by substoichiometric radiochemical method and the adsorption of colloidal dye disperse Blue 3 onto pretreated polyester fabric.

Uses

Potassium ethyl xanthogenate (ethyl potassium xanthogenate) has been used:

in synthesis of unsymmetrical sulfides via cross-coupling reaction, using recyclable CuO nanoparticles under ligand-free conditions
as surfactant to investigate the adsorption of colloidal dye Disperse Blue 3 onto pretreated polyester fabric
in determination of microgram amounts of cadmium in water samples by substoichiometric radiochemical method

Uses

As reagent in analytical chemistry.

Definition

Colorless or light-yellow crystals. Soluble in water and alcohol; insol- uble in ether.

Hazard

Toxic by ingestion.

Flammability and Explosibility

Highly flammable

Purification Methods

Crystallise it from absolute EtOH, ligroin/ethanol or acetone by adding Et2O. Wash it with ether, then dry it in a desiccator. Its solubility in Me2CO is 8% at 25o. [Beilstein 3 H 563, 3 I 196, 3 II 367, 3 III 1101, 3 IV 1274.]

Mode of action

Potassium ethylxanthate (KEtX) has long been utilized as a collector in the flotation of chalcocite (Cu2S), bornite (Cu5FeS4), chalcopyrite (CuFeS2) and galena (PbS). KEtX acts as an inhibitor of anodic corrosion of copper in acidic sodium chloride solutions. The collection efficiency of EtX? ion is ascribed to its interaction with mineral surfaces, possibly through a chemisorption bond. A similar interaction of EtX? ions with Pb has been found. It is interesting to note that the anodic oxidation of copper of KEtX to diethyl dixanthogen should be considered according to the following equations:

Diethyl dixanthoges does not diffuse into the bulk solution but forms a physically adsorbed layer. Interactions of EtX? ions with the Cu electrode surface are first manifested by the adsorption of EtX? ions, which is then followed, at higher positive potentials, by a growth of Cu(I)EtX film. On the other hand, the inhibitory effect of EtX? may probably be explained on the basis of stabilizing the +1 oxidation state of copper in the film against further oxidation and an increase in the hydrophobicity of the metal surface[1].

References

[1] Scendo, M. “Potassium ethyl xanthate as corrosion inhibitor for copper in acidic chloride solutions.” Corrosion Science 47 7 (2005): Pages 1738-1749.

Potassium ethylxanthate Preparation Products And Raw materials

Raw materials

Ethanol Potassium hydroxide Carbon disulfide

Preparation Products

SULCONAZOLE 2-((Ethoxythioxo methyl)thio)-2-methylpropanoic acid 3-BROMOTHIOPHENOL 2-MERCAPTOISOBUTYRIC ACID 2-METHOXYBENZENETHIOL BIS(4-NITROPHENYL) SULFIDE Omeprazole 2,4-DICHLOROTHIOPHENOL 6-ETHOXY-2-MERCAPTOBENZOTHIAZOLE 4-(ETHYLTHIO)BENZOIC ACID

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View Lastest Price from Potassium ethylxanthate manufacturers

Hebei Yanxi Chemical Co., Ltd.

Product: Potassium ethylxanthate 140-89-6
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 100tons
Release date: 2023-09-19

Zhuozhou Wenxi import and Export Co., Ltd

Product: Potassium ethylxanthate 140-89-6
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Zhuozhou Wenxi import and Export Co., Ltd

Product: Potassium ethylxanthate 140-89-6
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-11

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KEX

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DK538