Sodium AntimonateProperty: White powder. Product Specification:(NS-I Sodium Antimonate)NaSbO3(min): 99.0%; Sb: 62.0%; Na2O:15.0%; Sb3+: 0.09%; As: 0.1%; PbO: 0.2%; Cu: 0.005%; Fe2O3: 0.005%;? Average Particle Size: 70-80 um; Whiteness: 91.Packing: 25KG in WPP Bag or as customer's requirement.