Sulfate ion

Sulfate ion (CAS 14808-79-8), also referenced as SO4²⁻, is the dissociated anion present in inorganic sulfate salts used in industrial processing.

Where is Sulfate ion used?

• Water treatment: sulfate-bearing coagulants drive suspended solids removal and clarification
• Mining: leaching, metal precipitation, and tailings management
• Agriculture: bioavailable sulfur for crops and fertilizer blends targeting sulfur-deficient soils
• Food and feed: mineral supplements and processing aids in regulated formulations
• It functions as a reactive species in pH buffering and coagulation chemistry.

Good to know: The ion acts as a component in precipitation reactions rather than as a standalone purchasable compound; procurement is always through a specific salt form. Buyers should specify both the desired cation and the required grade when sourcing.

Commercial specifications

• Cation options include aluminum sulfate, ferrous sulfate, and ammonium sulfate