Specification: industrial grade 0.001%=10ppm Specificationspowder granular Content (on dry basis): 98.598.0% min Moisture0.55.0% max Ph(1% solution) : 2.8 2.8min Ignited residue: 0.10.1%max Ammelide/ammeline0.50.4%max Iron(fe) 3520ppm Sulphate(so42-)0.515%max Particle size80-100mesh 95% through10-40mesh 95% through 25kg/50lb pp woven bags, kraft paper bag or polythene bag, with pe liner 1mt/2000lb super sack, with pe liner. 500kg/1000lb super sack with pe liner 250kg/500lb steel drum, plastic drum with pe liner. 50kg/100lb steel drum, plastic drum with pe liner.