Potassium Ethyl Xanthate (CAS 140-89-6) is a xanthate salt supplied as a yellow crystalline powder that is soluble in water, used in mining as a flotation collector for sulfide ores such as copper, zinc and lead, and as an intermediate in rubber accelerators, agrochemicals and lubricant additives. It’s soluble in water and decomposes upon heating or exposure to acids.
Typical Properties
| Molecular formula | C3H6OS2.K |
|---|---|
| Molecular weight | 160.3 g/mol |
| Appearance | Light Green Solid |
| Form | Crystalline Powder |
| Color | Yellow |
| Melting point | 210 °C (decomp) |
| Boiling point | 462.37°C[at 101 325 Pa] |
| Density | 1,558 g/cm 3 |
| Water solubility | Soluble in water. |
| Flash point | 96°C |
| pH | 9-10 (100g/l, H2O, 20°C) |
| GHS signal word | Danger · Flammable, Corrosive, Acute toxicity, Irritant / harmful, Health hazard |
| HS code | 29309090 |
| Grades available | Technical Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Potassium Ethyl Xanthate
Applications
Primarily used in the mining industry as a flotation collector for sulfide ores such as copper, zinc, and lead. It enhances separation efficiency and recovery rates in mineral beneficiation. Also employed in the synthesis of rubber accelerators, agrochemicals, and lubricant additives.
Safety & Risks
Decomposes to form carbon disulfide, a flammable gas; handle under ventilation. Avoid skin contact and open flames. Classified as hazardous to aquatic environments.
Packaging
Delivered in 25 kg drums, woven sacks, or 1,000 kg IBC tanks with moisture barriers. Store in cool, dry, and well-ventilated conditions away from heat and acids.