NAME: Potassium Ethyl Xanthate (PEX) CAS NO.: 140-89-6 EC NO.: 205-439-3 Other name: Potassium ethyl xanthate CHEMICAL FOMULA: C2H5OCSSK SPEC: 90% 82% PHYSICALS: White to yellow crystal or crystalized powder.easy soluble in water, soluble in alcohol. Melting point 210 degree centigrade(decomposition) FUNCTIONS: Potassium ethyl xanthate is a rather powerful collector with some selectivity. It's appropriate for prior floatation of complicated nonferrous metallic sulfurized ores. STORAGE: Humidity-proof,heat-proof,fire-proof PACKAGE: 110,160KG/drum; 800KG/crate 120, 180KG/drum 130KG/drum