Usage:Used to manufacture metaphosphate in medical or food industry. Used as a high effective K and P compound fertilizer. It contains totally 86% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer.
Standard:
Item Unit Specification
Tech grade Food grade
Main content： % 98 min 98 min
Phosphorus pentoxide as P2O5: % 51.5 min 51.5 min
Potassium oxide as K2O: % 34 min 34 min
Ph of 1% water solution: - 4.4-4.8 4.4-4.8
Moisture: % 0.2 max 0.2 max
Heavy metal as Pb: % 0.001 max
Arsenic as As: % 0.0003 max
Fluoride as F: % 0.003 max
Water insoluble: % 0.05 max 0.05 max
