Xanthates (Potassium & Sodium Salts)

Features

Some common features of these collectors include:

• Excellent selectivity in sulfide ore flotation
• High solubility and rapid dispersion in flotation circuits
• Consistent reactivity, and metallurgical recovery

Available Products & Forms

Potassium Xanthates

• Potassium Amyl Xanthate (PAX) Highly selective collector for copper, lead, zinc, and nickel sulfides. Available Forms:  Powder-Granules
• Potassium Butyl Xanthate (PBX) Effective flotation agent and vulcanization accelerator in rubber production. Available Forms:  Pellets-Liquid
• Potassium Isoamyl Xanthate (PiAX) Strong collector for non-ferrous and oxidized sulfide ores; enhances recovery of gold-bearing sulfides. Available Forms:  Powder-Pellets
• Potassium Ethyl Xanthate (KEX) Versatile reagent for copper and nickel flotation; also used in organic synthesis. Available Forms: Crystalline powder

Sodium Xanthates

• Sodium Ethyl Xanthate (SEX) High-efficiency collector for copper, lead, zinc, and precious metals; also applied as a vulcanization accelerator. Available Forms: Powder-Pellets
• Sodium Isopropyl Xanthate (SIPX) Widely used collector for non-ferrous metal sulfides and gold recovery, valued for its balance of strength and selectivity. Available Forms: Powder-Pellets

Technical Identification

Potassium Amyl Xanthate (PAX)

• CAS Number: 2720-73-2
• EC Number: 220-294-1

Potassium Butyl Xanthate (PBX)

• CAS Number: 871-58-9
• EC Number: 212-819-3

Potassium Isoamyl Xanthate (PiAX)

• CAS Number: 41233-93-6
• EC Number: 255-391-1

Potassium Ethyl Xanthate (KEX)

• CAS Number: 140-89-6
• EC Number: 205-434-1

Sodium Ethyl Xanthate (SEX)

• CAS Number: 141-90-2
• EC Number: 205-508-8

Sodium Isopropyl Xanthate (SIPX)

• CAS Number: 140-93-2
• EC Number: 205-439-8

Regulatory Status

All xanthates are classified as hazardous substances and must be handled under controlled industrial conditions.

• Our xanthates are manufactured and supplied under strict quality and safety controls, supporting consistent performance, stability, and compliance with international transport and chemical regulations (UN, IMDG, REACH).
• Supplied with complete Safety Data Sheets (SDS) and Certificates of Analysis (COA).
• Storage, handling, and packaging conform to global regulations for hazardous materials for operator safety and environmental protection.

Silvari Group provides reliable access to a complete portfolio of Potassium and Sodium Xanthates, supported by consistent specifications and global logistics. Through disciplined quality management, regulatory alignment, and dedicated technical assistance, we support product safety, efficiency, and dependable performance across global mineral processing markets.