... ±2SiO2≤1.2CaO≤0.5Fe2O3≤0.2Whiteness≥90Specification: 325 mesh,600 mesh, 2000 mesh, 5000 mesh, etc.3.Application FieldMagnesium hydroxide is inorganic addition ... or 40kg. store: storing in dry, ventilated and moistureproof conditions FOOD GRADE MAGNESIUM HYDROXIDE