Potassium amyl xanthate

Potassium amyl xanthate (PAX, CAS 2720-73-2) is an organosulfur salt commercially supplied under trade names including Aeroxanthate 350. It carries no assigned E-code and is identified under EC number 220-329-5. The molecular formula is C6H12OS2.K.

PAX functions as a selective collector in froth flotation, where it adsorbs onto sulfide mineral surfaces through xanthate-metal ion bonding, rendering particles hydrophobic and enabling separation from gangue. It is applied in copper, lead, and zinc ore processing, and also serves as a coagulation aid in mineral slurry management.

Supplied as a powder or crystalline solid, PAX is subject to REACH registration requirements for European procurement. Buyers should confirm supplier SDS documentation and compliance with applicable workplace chemical regulations. Standard packaging formats for industrial supply typically include fiber drums or bulk bags depending on order volume.