Standard | HG/T 2519-2007 |
Total phosphates(as P2O5)% ≥ | 68.0 |
Inactive Phosphates(as P2O5)% ≤ | 7.5 |
Water Insoluble matter% ≤ | 0.04 |
Iron (Fe)% ≤ | 0.03 |
PH Value | 5.8-7.0 |
Arseni c (As)% ≤ | -- |
Heavy metal (Pb)% ≤ | -- |
Fluoride (F)% ≤ | -- |
1. Industrial grade: used in such industries as oil field, paper-making, textile, dyeing, petrochemical industry, tanning industry, metallurgical industry and building material industry, and used as a water softening agent in solution for printing, dyeing, and boiler, as diffusant in papermaking; retarding agent, floating agent, dispersing medium, high temperature agglomerant, detergent and soil analytical chemical reagent;
2. Food grade: mainly used as additive agent, PH adjusting agent, fermenting agent, and nourishment, etc.