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
Potassium ethylxanthate Property
- Melting point:
- 209-214 °C
- Boiling point:
- 462.37℃[at 101 325 Pa]
- 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)
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
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.
N-Bromosuccinimide Price
- Product number
- 8.20744
- Product name
- Potassium-O-ethyldithiocarbonate
- Purity
- for synthesis
- Packaging
- 100g
- Price
- $89.5
- Updated
- 2024/03/01
- Product number
- 254770
- Product name
- Potassium ethyl xanthogenate
- Purity
- 96%
- Packaging
- 5g
- Price
- $74.7
- Updated
- 2024/03/01
- Product number
- 8.20744
- Product name
- Potassium-O-ethyldithiocarbonate
- Purity
- for synthesis
- Packaging
- 500g
- Price
- $385
- Updated
- 2024/03/01
- Product number
- 254770
- Product name
- Potassium ethyl xanthogenate
- Purity
- 96%
- Packaging
- 100g
- Price
- $108
- Updated
- 2024/03/01
- Product number
- E0194
- Product name
- Potassium Ethylxanthate
- Purity
- >95.0%(T)
- Packaging
- 25g
- Price
- $30
- Updated
- 2024/03/01
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
Preparation Products
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View Lastest Price from Potassium ethylxanthate manufacturers
- 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
- Product
- Potassium ethylxanthate 140-89-6
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-11-22
- 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