White granules or powder, assay ≥98.0%, P2O5 ≥42%, K2O ≥56%, pH 10.0–11.0 (0-42-56). Food grade acts as emulsifier, sequestrant and quality improver, preventing discolouration of canned fruit, raising ice-cream overrun and ham yield and improving water retention in fish; technical grade is a high-efficiency PK water-soluble fertiliser and soil conditioner with a slow-release effect.