Phosphate

Phosphate (CAS 14265-44-2) is the trivalent anion forming the functional basis of a broad family of inorganic phosphate salts.

Where is Phosphate used?

• Food and beverage processing: acidity regulation, metal ion sequestration, shelf-life extension in meat, dairy and bakery products
• Fertilizer and feed: primary source of bioavailable phosphorus for crop nutrition and animal diet supplementation
• Water treatment: dosing to inhibit scale formation and corrosion in distribution pipelines and industrial cooling systems
• Pharmaceutical and nutraceutical formulators use specific phosphate salts as buffering agents in injectable solutions, oral dosage forms and mineral supplement blends.

Good to know: Supplied commercially as sodium, potassium, calcium and ammonium salt forms; the appropriate specification is determined by the counterion and end-use sector. Buyers typically specify both the cation and the phosphate ratio such as mono-, di- or tribasic.

Commercial specifications

• Salt forms: sodium, potassium, calcium, ammonium