Tripotassium phosphate Anhydrous(ATKP) specifications TECHGRADE FOODGRADE 1. Main conmtent, % ≥98.0 98.0 2.P2O5 % ≥32.8 32.8 Phosmhorus pent-oxide 3. K2O % ≥65.0 5.0 4. Non-wat er insolubie %≤0.10 0.05 5.PH 11.5-12.5 11.5-12.5 6. Fluoride (F) % ≤ 0.003 7.) Heavy metals, as Pb%≤ 0.002 8. Arsenic , as As % ≤ 0.0003 9.Sieve test (Through 60mesh) % ≤90.0 90.0